57-4x=9x+18

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Solution for 57-4x=9x+18 equation:


Simplifying
57 + -4x = 9x + 18

Reorder the terms:
57 + -4x = 18 + 9x

Solving
57 + -4x = 18 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
57 + -4x + -9x = 18 + 9x + -9x

Combine like terms: -4x + -9x = -13x
57 + -13x = 18 + 9x + -9x

Combine like terms: 9x + -9x = 0
57 + -13x = 18 + 0
57 + -13x = 18

Add '-57' to each side of the equation.
57 + -57 + -13x = 18 + -57

Combine like terms: 57 + -57 = 0
0 + -13x = 18 + -57
-13x = 18 + -57

Combine like terms: 18 + -57 = -39
-13x = -39

Divide each side by '-13'.
x = 3

Simplifying
x = 3

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