9x-(4x-12)=57

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Solution for 9x-(4x-12)=57 equation:


Simplifying
9x + -1(4x + -12) = 57

Reorder the terms:
9x + -1(-12 + 4x) = 57
9x + (-12 * -1 + 4x * -1) = 57
9x + (12 + -4x) = 57

Reorder the terms:
12 + 9x + -4x = 57

Combine like terms: 9x + -4x = 5x
12 + 5x = 57

Solving
12 + 5x = 57

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 5x = 57 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = 57 + -12
5x = 57 + -12

Combine like terms: 57 + -12 = 45
5x = 45

Divide each side by '5'.
x = 9

Simplifying
x = 9

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