3(-5+6x)=129

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Solution for 3(-5+6x)=129 equation: 


Simplifying
3(-5 + 6x) = 129
(-5 * 3 + 6x * 3) = 129
(-15 + 18x) = 129

Solving
-15 + 18x = 129

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 18x = 129 + 15

Combine like terms: -15 + 15 = 0
0 + 18x = 129 + 15
18x = 129 + 15

Combine like terms: 129 + 15 = 144
18x = 144

Divide each side by '18'.
x = 8

Simplifying
x = 8

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