3(-7-6x)=-129

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Solution for 3(-7-6x)=-129 equation: 


Simplifying
3(-7 + -6x) = -129
(-7 * 3 + -6x * 3) = -129
(-21 + -18x) = -129

Solving
-21 + -18x = -129

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -18x = -129 + 21

Combine like terms: -21 + 21 = 0
0 + -18x = -129 + 21
-18x = -129 + 21

Combine like terms: -129 + 21 = -108
-18x = -108

Divide each side by '-18'.
x = 6

Simplifying
x = 6

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