57=9-4x

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Solution for 57=9-4x equation:


Simplifying
57 = 9 + -4x

Solving
57 = 9 + -4x

Solving for variable 'x'.

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

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

Combine like terms: -4x + 4x = 0
57 + 4x = 9 + 0
57 + 4x = 9

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

Combine like terms: 57 + -57 = 0
0 + 4x = 9 + -57
4x = 9 + -57

Combine like terms: 9 + -57 = -48
4x = -48

Divide each side by '4'.
x = -12

Simplifying
x = -12

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