Solving Equations with Distributing and Combining

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides

• Add the 2a and a 

• Distribute 4 to a and -5

• Distribute -4 to a and -5

Tags

CCSS.8.EE.C.7B

Solve the equations:

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

• 4

• 3

• 2

• 1

Tags

CCSS.8.EE.C.7B

Which of the equations has no solution?

• 2x + 1 = 5x - 3

• 2(x - 7) = 2x-14

• 3(2x+1) = 6x+1

• 15x - 30 = 0

Tags

CCSS.8.EE.C.7A

Solve the equation:
4 - 6x - 2= -2(3x-1)

• no solution

• infinitely many solutions

• x = ⅓

• x = 4

Tags

CCSS.8.EE.C.7A

Solve:

2(2x + 3) = -6(x + 9)

• 2

• 6

• -6

• 7.5

8v - 4(v + 8) = 8

• 2

• 10

• 4

• -4 

Tags

CCSS.8.EE.C.7B

2x + 3(5x - 7) = 47

• 1

• 2

• 3

• 4

Tags

CCSS.8.EE.C.7B

Which step cannot be performed first when solving the equation
5 - 2(x - 7) = x + 1 + 3x

• Distributing -2 to (x - 7)

• Combining x and 3x

• Subtracting 1 from both sides

• 5 - 2

12k + 15 = 35 +2k

• k = 2

• k = 4

• k = -2

• k = -4

3 ( a + 22 ) = 12a + 30

• a = 8

• a = 2

• a = 4

• a = -2

Tags

CCSS.8.EE.C.7B