Multi-Step Integer Equations

What is the Least Common Multiple for the values in the equation:
2/5x + 3/4 = 3/5x + 8

• 20

• 9

• 10

• 40

Find the Error
What error did the student make when solving the equation:
1/5x + 6 = 3/5x + 5
1x + 6 = 3x + 5
-2x + 6 = 5
-2x = -1
x = 1/2

• The student found an incorrect common denominator

• The student did not multiply all terms by the common denominator

• The student did not use opposite operations appropriately

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

Solve the Equation:
12.5 -4g = -2g - 3.5

• g = -8

• g = 10

• g = 8

• g = 1.25

Find the solution:
10 = 4x - 2

• x = 3

• x = 2

• x = -3

• x = -2

Tags

CCSS.7.EE.B.4A

• –6x + 1 = 45

• –3(3x) = 45

• –6x – 3 = 45

• –6x = 44

Tags

CCSS.7.EE.B.4A

Solve:

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

Tags

CCSS.7.EE.B.4A

–6x + 1 = 45

• –6x + 1 = 45

• –3(3x) = 45

• –6x – 3 = 45

• –6x = 44

Tags

CCSS.HSA.REI.A.1

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5

Tags

CCSS.6.EE.B.7

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12

Tags

CCSS.7.EE.B.4A

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

Tags

CCSS.7.EE.B.4A