Solving Multi-step Equations

What's the solution to 2x - 3 + 4x = 27?

• 12

• 4

• 5

• 15

Tags

CCSS.8.EE.C.7B

What value of x makes the equation 3x + 2(4x - 4) = 3 true?

• 4

• 3

• 2

• 1

Tags

CCSS.6.EE.B.5

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides
• Add the 2a and a 
• Distribute 4 to a and -5
• Distribute -4 to a and -5

Tags

CCSS.8.EE.C.7B

What is the 1st step in solving the following equation?

3x + 7 = x - 21

• Move variables to same side

• Add 7 to both sides

• divide both sides by 3

• Subtract 21 from both sides

What is the 2nd step in solving the following equation?

3x + 7 = x - 21

2x + 7 = -21

• Divide both sides by 2

• add 7 to both sides

• Subtract 7 from both sides

• Subtract 21 from both sides

Which step is incorrect?

120 = -4(7a+2)

Step 1: 120 = -28a - 8

Step 2: 112 = -28a

Step 3: a=-4

• Problem is correct

• step 1

• step 2

• step 3

Tags

CCSS.HSA.REI.A.1

5.    6b = 30

• x = 36
• x = 24
• x = 180
• x = 5

Tags

CCSS.6.EE.B.7

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

Tags

CCSS.6.EE.B.7

• x = 20
• x = 7
• x = 10
• x = 3

Tags

CCSS.6.EE.B.7

• 5

• 6

• -5

• -6

Tags

CCSS.7.EE.B.4A