Solving equations 2

r + 1 + 6r = -20

• -3
• -5
• -10
• -16

8(2v + 6) = 128

• 5
• 12
• 0
• 8

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

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

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

• h = 10
• h = 2
• h = -2
• h = -10

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

x/5 - 13 = 20

• 145
• 165
• 180
• 190

Solve.

• x = 24
• x = 12
• x = 17.5
• x = 19.5

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

6z + 3 -4z = 9

• z = 3
• z = 60
• z = 30
• z = 1

-13-2r=3-4r

• 0

• 3

• 5

• 8

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

-2x + 35 = 5(-5 - 7x) - 6

• -3

• 11

• 13

• -2

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6