Quiz about Unit 4 Study Guide

Question 1

1.) Solve for x: $$3x-3=-12$$

Accepted Answer

$$x=-3$$

Answer

$$x=-5$$

Answer

$$x=3$$

Answer

$$x=5$$

Question 2

2.) Max must solve the following equation to find b, the number of boys in his class.

$$b+12\ =\ 23$$

Which method should Max use to find b?

Accepted Answer

Subtract 12 from both sides of the equation.

Answer

Subtract 23 from both sides of the equation.

Answer

Add 12 to both sides of the equation.

Answer

Add 23 to both sides of the equation.

Question 3

3.) Solve for x:

$$3x+7=2x$$

Accepted Answer

$$x=-7$$

Answer

$$x=\frac{5}{7}$$

Answer

$$x=-\frac{5}{7}$$

Answer

$$x=7$$

Question 4

4.) In the equation $$5x-2=-x-20$$ , what is the value of x?

Accepted Answer

$$x=-3$$

Answer

$$x=3$$

Answer

$$x=-5.5$$

Answer

$$x=3\frac{2}{3}$$

Question 5

5.) What is the value of x in the following equation?

$$4\left(2x+1\right)=27+3\left(2x-5\right)$$

Accepted Answer

4

Answer

21

Answer

9

Answer

7 1/2

Question 6

6.) Solve:

$$5x=2$$

Accepted Answer

$$x=\frac{2}{5}$$

Answer

$$x=10$$

Answer

$$x=\frac{5}{2}$$

Answer

$$x=-3$$

Question 7

7.) Solve for x: $$-0.3x-2.7=-1.2$$

Accepted Answer

$$x=-5$$

Answer

$$x=5$$

Answer

$$x=-13$$

Answer

$$x=13$$

Question 8

8.) Solve: $$\frac{1}{3}y+3=8-\frac{1}{6}y$$

Accepted Answer

$$y\ =\ 10$$

Answer

$$y=-10$$

Answer

$$y=22$$

Answer

$$y=\ 2\ \frac{1}{2}$$

Question 9

9.) Solve the following equation for x.

$$x-7=15$$

Accepted Answer

$$x=22$$

Answer

$$x=8$$

Answer

$$x=-8$$

Answer

$$x=-22$$

Question 10

10.)What is the solution?

$$2\left(3x+5\right)-2x+2=0$$

Accepted Answer

$$x=-3$$

Answer

$$x=3$$

Answer

$$x=-7$$

Answer

$$x=-1\ \frac{3}{4}$$

Question 11

11.) What is the value of x in this equation?

$$2x-4.01=7.13$$

Accepted Answer

$$x=5.57$$

Answer

$$x=11.14$$

Answer

$$x=1.56$$

Answer

$$x=22.28$$

Question 12

12.) Solve: $$\frac{x}{4}+3=2\left(x-2\right)$$

Accepted Answer

$$x=4$$

Answer

$$x=2\ \frac{6}{7}$$

Answer

$$x=\frac{4}{9}$$

Answer

$$x=-4$$

Question 13

13.) Solve: $$4x\ +\ 8=10x-2\left(3x-4\right)$$

Accepted Answer

Infinitely Many Solutions

Answer

$$x=10$$

Answer

$$x=1\ \frac{5}{7}$$

Answer

No Solution

Question 14

14.) Solve this equation, show your work, and choose the best answer: $$5x+8=18$$

Accepted Answer

$$x=2$$

Answer

$$x=5\ \frac{1}{5}$$

Answer

$$x=5$$

Answer

$$x=\frac{1}{2}$$

Question 15

15.) Solve: $$7m+11-5m-2=2m-9$$

Accepted Answer

no solution

Answer

infinitely many solutions

Question 16

16.) Simplify the expression: $$2x\left(5+y\right)$$

Accepted Answer

$$10x+2xy$$

Answer

$$7x+y$$

Answer

$$7x+2xy$$

Answer

$$10x+y$$

Question 17

17.) Solve: $$17j+22=-23+2j$$

Accepted Answer

-3

Answer

-7

Answer

1/15

Answer

5

Question 18

18.) Simplify the expression below.

$$13y+x-7y$$

Accepted Answer

$$6y+x$$

Answer

$$x-20y$$

Answer

$$6x+y$$

Answer

$$7xy$$

Question 19

19.) Simplify: $$6b+4a+3a-2b$$

Accepted Answer

$$4b+7a$$

Answer

$$11ab$$

Answer

$$7a-8b$$

Answer

$$4a+7b$$

Question 20

20.) Solve: $$3\left(x-4\right)=2x-\left(6+x\right)$$

Accepted Answer

$$x=3$$

Answer

$$x=-3$$

Answer

No Solution

Answer

$$x=\frac{3}{4}$$

Question 21

21.) Solve:

$$3x+10=19$$

Accepted Answer

$$x=3$$

Answer

$$x=27$$

Answer

$$x=87$$

Answer

$$x=9\ \frac{2}{3}$$

Question 22

22.) Simplify: $$6\left(a-2b\right)+3\left(4a+b\right)$$

Accepted Answer

$$18a-9b$$

Answer

$$18a-15b$$

Answer

$$18a-11b$$

Answer

$$18a-b$$

Question 23

23.) $$8\left(y+2\right)+y$$

Accepted Answer

9y + 16

Answer

17y

Answer

8y + 16

Answer

9y + 2

Question 24

24.) $$6m+5+3\left(8-m\right)$$

Accepted Answer

3m + 29

Answer

-2m + 64

Answer

9m + 29

Answer

5m + 64

Question 25

25.) Solve: $$-18\ +\ a\ =\ 28$$

Accepted Answer

a = 46

Answer

a = 10

Answer

a = -46

Answer

a = -10

Question 26

26.) $$\frac{x}{9}-4\ =\ 11$$

Accepted Answer

x = 135

Answer

x = 1.666...

Answer

x = 0.777...

Answer

x = 72

Question 27

27.) $$y+16-6=-4+8y$$

Accepted Answer

y = 2

Answer

y = -2

Answer

y = $$\frac{2}{3}$$

Answer

y = $$\frac{1}{2}$$

Question 28

28.) $$\frac{1}{2}x+12\ =-3$$

Accepted Answer

x = -30

Answer

x = -18

Answer

x = -7.5

Answer

x = 4.5

Question 29

29.) $$10\ -\ 4x=-9x-20$$

Accepted Answer

x = -6

Answer

x = 6

Answer

x = $$\frac{10}{13}$$

Answer

x = -2

Question 30

30.) What would be the first step in simplifying the expression?

$$2\left(5x-4\right)+3x$$

Accepted Answer

Distribute 2

Answer

Combine 5x and 3x

Unit 4 Study Guide

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