9x+12-4x=57

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Solution for 9x+12-4x=57 equation:


Simplifying
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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