Solving multiple step equations

r + 1 + 6r = -20

• -3
• -5
• -10
• -16

Tags

CCSS.8.EE.C.7B

57 = 2 (1 + 5n) - 5 (1 + 6n)

• 3
• -3
• 9
• -9

Tags

CCSS.8.EE.C.7B

-267 = -7 (7m + 1) - 3m

• -12
• 5
• 15
• -5

Tags

CCSS.8.EE.C.7B

8(2v + 6) = 128

• 5
• 12
• 0
• 8

Tags

CCSS.7.EE.B.4A

Solve for k:
3k + 5 = 23

• k = 4
• k = 5
• k = 6
• k = 7

Tags

CCSS.7.EE.B.4A

Solve    8 - 2x = 30

• -11
• 11
• -12
• 12

Tags

CCSS.7.EE.B.4A

Solve the Equation:
2(6b + 1) = 4(b - 5) -2

• b = - 2.75
• b = -7/8
• b = 3
• b = -3

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

Solve the Equation:
-2h - 16 = 3h - 6

• h = 10
• h = 2
• h = -2
• h = -10

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

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

Tags

CCSS.6.EE.A.3

x/5 - 13 = 20

• 145
• 165
• 180
• 190

Tags

CCSS.7.EE.B.4A