Equations Test Review

Which is the correct first step to solve the linear equation shown?

10-3x=50

• add 3 to both sides

• divide -3 on both sides

• Add 10 to both sides

• Subtract 10 from both sides

Which is the correct first step to solve the linear equation shown?

20-4x=60

• add 4 to both sides

• divide -4 on both sides

• Add 20 to both sides

• Subtract 20 from both sides

Bob solved the equation as shown below. Which correctly describes the error Bob made in his work?

• No solution

• Did not subtract 3x from 2x correctly

• Distributed wrong

• Did not combine like terms

• Brought down a 6n when it should have been a 3n

• brought down a 3n when it should have been a 6n

• Did not distribute correctly

• Did not combine like terms

Which of the following shows the equation after both sides have been distributed correctly?

-5 (x+3)=2(3x+4)

• -5x-15=6x+8

• 5x+15=6x+8

• -5x-20=14+8x

• 5x-15=-6x+8

Which of the following shows the equation after both sides have been distributed correctly?

-3 (2x+2)=-2(5x+10)

• 6x=6

• 6x6=6x+8

• -6x-6=10x-20

• 6x-6=5x-10

Simplify by combining like terms.

7x+3+4

• 7x+7

• 7x+3

• 7x-3

• 7x-7

Distribute and then combine.

-5x+2(2x+4)

• x+8

• -x+8

• -9x+4

• 9x+4

Distribute and then combine.

-2x+3(5x+2)

• 2x+1

• 25x+6

• 13x+6

• 3x+6

Solve.

-3x=12

• x=-3

• x=3

• x=4

• x=-4