G7 T2 U1 Session 4 on Linear Equations [MPE]

Multiple Choice

Translate: the sum of eight and the product of a number and nine

• $$8+9x$$  

• $$8x+9$$  

• $$\frac{x}{9}+8$$  

• $$9x-8$$  

Multiple Choice

Translate: five times the sum of a number and four

• $$5x+4$$  

• $$5\left(x+4\right)$$  

• $$5\left(4x\right)$$  

• $$4\left(x+5\right)$$  

Multiple Choice

Translate: twelve less than a number

• $$12-x$$  

• $$x-12$$  

• $$12x$$  

• $$x+12$$  

Multiple Choice

What is the additive inverse of -5?

• -5
• 0
• 5
• -0

Multiple Choice

What is the additive inverse of 8?

• 8
• 0
• -0
• -8

Multiple Choice

$$\frac{2}{3}\cdot--=1$$  

• -2/3
• 3/2
• -3/2
• -1

Multiple Choice

Name the appropriate property used below.

8 + (-8) = 0

• Additive Inverse
• Additive Identity
• Commutative
• Substitution

Multiple Choice

Name the property used below:

7 • (1/7) = 1

• Multiplicative Inverse
• Multiplicative Identity
• Multiplicative Property of Zero
• Substitution

Draw

Solve the equation: 2(x+3) = 8

Draw

Solve the equation: 5(x-7) = -15

Multiple Choice

Translate the mathematical sentence:

A number divided by 12 equals

one-fourth.

• $$x\div12\ =\ -\frac{1}{4}$$

• $$x+12\ =\ \frac{1}{4}$$  

• $$\frac{x}{12}\ =\ \frac{1}{4}$$  

• -12 = x

Multiple Choice

Solve the equation: $$\frac{x}{12}=\frac{1}{4}$$  

• 3

• 4

• 5

• -3

Multiple Choice

Translate the mathematical statement: Thirty percent of number x is 36.

• 30x = 36

• 3x = 36

• 36x = 30

• 0.3x = 36

Multiple Choice

Solve the equation:

0.3x = 36

• 60

• 6

• 12

• 120

Multiple Choice

Make m the subject of k – x + m = 0

• k + x = m

• -k - x = -m

• m = -k + x

• -m = -k + x

Multiple Choice

Make y the subject of 3y + 5 = x

• 3y = x - 5

• $$y\ =\ \frac{x-5}{3}$$  

• $$y\ =\ \frac{5}{3}+x$$  

• $$y\ =\ \frac{-x\ +\ 5}{3}$$  

Multiple Choice

Make x the subject of this formula.

$$y=5x$$  

• $$x=\frac{y}{5}$$

• $$x=5y$$

• $$x=\frac{5}{y}$$

• $$x=5\div y$$

Multiple Choice

Make x the subject of this formula.

$$y=5x+1$$  

• $$x=\frac{y-5}{1}$$

• $$x=\frac{y-1}{5}$$

• $$x=\frac{5y}{1}$$

• $$x=\frac{y}{5}$$

Multiple Choice

Make x the subject of this formula.

$$y=\frac{x-4}{5}$$  

• $$x=5y-4$$

• $$x=5y+4$$

• $$x=5y+3$$

• $$x=4y-5$$