Question 628824
2x - 3(x + 4) = -5

-3 * x = -3x

-3 * 4 = -12

2x - 3x - 12 = -5

Combine like terms:

2x - 3x = -1x


Therefore:

-1x - 12 = -5

Add 12 to each side of the equation

-1x - 12 + 12 = -5 + 12

Combine like terms:

-12 + 12 = 0

-5 + 12 = 7

-1x = 7

Divide each side by -1

-1x/-1 = 7/-1

x = -7



Check:

2x - 3(x + 4) = -5

2(-7) - 3(-7 + 4) = -5

-3 * -7 = 21

-3 * 4 = -12

2(-7) = 2 * -7 = -14

Therefore:

-14 + 21 - 12 = -5

Combine like terms:

-14 - 12 = -26

-26 + 21 = -5

-26 + 21 = -5

Therefore:

-5 = -5




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