8-17 Equations and Inequalities

Find the value of x for the equation below:

-3x + 10 = 5x - 8

• x = 1

• x = 2.25

• x = -1.5

• x = 2

 $\frac{1}{2}$  x - 7 = 5

• 6

• -1

• -4

• 24

Tags

CCSS.7.EE.B.4A

Solve the following inequality. 
2(x - 3) - 5x $\le$ 9

•  $\le$  -5

•  $\ge$  -5

•  $\le-1$  

•  $\ge$  1

Find the error in the problem below

19 - 2k = 3k - 1

+3k +3k

19 + 1k = -1

-19 -19

k = -20

• They should have divided by 1 for the last step

• They should add 19 instead of subtracting 19

• I can not find an error

• Instead of adding 3k they should subtract 3k

Tags

CCSS.HSA.REI.A.1

Which number line represent the solution to the inequality −7x −13 ≥ 8?

• Line A

• Line B

• Line C

• Line D

Tags

CCSS.7.EE.B.4B

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

Solve the equation:
3(x - 1) = 2x + 9

• x = 12
• no solution
• x = 10
• x = 6

solve 5(6 + 3r) + 7 ≥ 127

• r ≤ 6

• r ≥ 6

• r ≤ -6

• r ≥ -6

Tags

CCSS.7.EE.B.4B

Solve:
3x + 15 = 3(x + 5)

• No Solution
• x = 15
• Infinitely Many Solutions
• x = 0

Tags

CCSS.8.EE.C.7A

Solve:

2(2x + 3) = -6(x + 9)

• x = 1.2

• x = 6

• x = -6

• x = 7.5