3x-6(3x+13)=57

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Solution for 3x-6(3x+13)=57 equation:


Simplifying
3x + -6(3x + 13) = 57

Reorder the terms:
3x + -6(13 + 3x) = 57
3x + (13 * -6 + 3x * -6) = 57
3x + (-78 + -18x) = 57

Reorder the terms:
-78 + 3x + -18x = 57

Combine like terms: 3x + -18x = -15x
-78 + -15x = 57

Solving
-78 + -15x = 57

Solving for variable 'x'.

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

Add '78' to each side of the equation.
-78 + 78 + -15x = 57 + 78

Combine like terms: -78 + 78 = 0
0 + -15x = 57 + 78
-15x = 57 + 78

Combine like terms: 57 + 78 = 135
-15x = 135

Divide each side by '-15'.
x = -9

Simplifying
x = -9

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