Solve Equations and Inequalities

4x + 2(x - 6) = 12

• x = 6
• x = 4
• x = 2
• x = -2

Tags

CCSS.8.EE.C.7B

solve 5(6 + 3r) + 7 ≥ 127

• r ≤ 6

• r ≥ 6

• r ≤ -6

• r ≥ -6

Tags

CCSS.7.EE.B.4B

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

Solve:

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

• x = 1.2

• x = 6

• x = -6

• x = 7.5

3x - 8 < 3(x - 4) + 1

• x < -11

• no solution

• all real numbers

• x > -8

Match:
You must be at least 48 inches tall to ride the bumper cars.

• h < 48
• h > 48
• h ≤ 48
• h ≥ 48

Tags

CCSS.6.EE.B.8

You can spend no more than 20 dollars on your mom's birthday present.

• x > 20
• x < 20
• x ≤ 20
• x ≥ 20

Tags

CCSS.6.EE.B.8

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63
• 7x = 63
• 7x - 35 = 63
• 35x + 7 = 63

Tags

CCSS.HSA.CED.A.3

4|5x-2|+7>39

• -6/5<x>2
• x=2 or x=-6/5
• x=2 and x=-6/5
• x<-6/5 or x>2

Solve and graph:

• A
• B
• C
• D