Question

Solve for x: −2(x + 3) = −2(x + 1) − 4

Answer 1

distribute

Answer 2

-2x - 6 = -2x - 2 - 4
combine like terms

Answer 3

-2x -3 = -2x - 2 - 4

Transpose:

-2x + 2x = 3 - 2 - 4

0 = 3 - 6 <-- Do the last part


What happens when the x's cancel and become 0's?

Answer 4

sorry divide everything by -2 to get

x + 3 = x + 1 + 2

Answer 5

Then you'll realize that x + 3 = x + 3

Answer 6

But you won't be able to solve for x

Answer 7

However, you can subtract x from both sides and subtract 3 from both sides to get

0 = 0

Then you'll know that the solutions are infinite.

Answer 8

actually, @Compassionate made a mistake with his solution while trying to distribute the -2 on the left side.

Answer 9

May you help me with this one?

x = 0.8x + 72

Answer 10

subtract 0.8x from both sides to end up with

0.2x = 72

Divide both sides by 0.2 to get

x = 72/0.2
x = 360