-39=-3(6+x)

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Solution for -39=-3(6+x) equation: 


Simplifying
-39 = -3(6 + x)
-39 = (6 * -3 + x * -3)
-39 = (-18 + -3x)

Solving
-39 = -18 + -3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3x' to each side of the equation.
-39 + 3x = -18 + -3x + 3x

Combine like terms: -3x + 3x = 0
-39 + 3x = -18 + 0
-39 + 3x = -18

Add '39' to each side of the equation.
-39 + 39 + 3x = -18 + 39

Combine like terms: -39 + 39 = 0
0 + 3x = -18 + 39
3x = -18 + 39

Combine like terms: -18 + 39 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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