Solving Equations by Simplifying

Solve the equation.

.

6(x + 5) = 5x + 2(x + 4)

• 32.0

• 26.0

• 22.0

• 14.0

Solve:
2(a + 4) = 2a - 8 + 4a

• 3

• -3

• -4

• 4

-4x+1=21

• x=120

• x=5

• x=30

• x=-5

8x - 4x = 80

• 84

• 320

• -20

• 20

4x + 7 = 23

• x = 16

• x = 4

• x = 9

• x = 12

Solve for x

• 35

• 3.5

• 0.35

• -35

6 + 2x + 4 = 16

• 6

• 3

• 26

• 13

0.5n + 8.7 = 12.35

• -8.3

• 8.3

• 7.3

• 16

Which is the correct steps to solve this problem:

-5n - 8(1 +7n) = -8

• -5n - 8 + 56n = -8

  -8 + 51n = -8

  51n = 0

  n = 51

• -5n - 8 + 7n = -8

  2n - 8 = -8

  2n = 16

  n = 8

• -5n - 8 - 56n = -8

  -51n - 8 = -8

  -51n = 16

  n = -.31

• -5n - 8 - 56n = -8

  -61n - 8 = -8

  -61n = 0

  n = 0

• 5

• 3

• infinite solutions

• -11