Multi-Step Equations

Find the Error
What error did the student make when solving the equation:
5x + 6 =  66
5x - 6 = 66 -6
5x = 60
5*5x= 60*5
x = 300

• The student subtracted 6 from both sides instead of adding

• Student multiplied by 5 instead of dividing by 5

• Student got the wrong answer when subtracting 66-6

• The student did not correctly eliminate the variable from one side of the equation

Solve

• 2

• -8

• No Solution

• Infinitely Many Solutions

Which equation will end in "no solution"?

• 2w - 11 = 3w + 5

• 2(w + 8) = 2(2w - 19)

• w + 7 + w = 2w - 9

• 2w - 6 = 2(w - 10) + 5w

Solve: 10x + 9 = 4x - 9

• 3

• 0

• -18

• -3

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

• x=5/3

• x=3

• x=1

• x=2

Solve: 14p - 8 = 22 + 20p

• -5

• 5

• 30

Solve the following equation for x:

5x − 6 = 8 − 2x

• x = 2

• x= −2

In order to solve an equation, we must get variables on one side of an equation, and constants on the opposite side.

• False

• True

• A
• B
• C
• D

• A
• B
• C
• D