Solving Multi-step Equations Practice

Solve the equation
12x - 15 = 3(2x + 3)

• x = 4
• x = -4
• x = 2
• x = -2

7w + 5 = 3w - 15

• w = 5

• w = -2

• w = 2

• w = -5

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

Is the solution below correct?
5d = 2d - 18
-2d   -2d
3d = -18
d = 6

• Yes
• No

Tags

CCSS.7.EE.B.4A

Solve: 2(4x - 3) - 8 = 4 + 2x

• 5/3
• 3
• 1
• 2

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

Solve: 5x + 15 = 10x - 40

• x = 10

• x = -10

• x = 11

• x = -11

Solve: 9x + 1 = 64

• x = 6

• x = 7

• x = 8

• x = 9

Tags

CCSS.7.EE.B.4A

Solve: 4x - 3 = 6x - 19

• x = -8

• x = 11

• x = -11

• x = 8

Solve: 12x + 1 = 6x - 47

• x = 6

• x = -7

• x = -8

• x = 9