57=9x+7-4x

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Solution for 57=9x+7-4x equation:


Simplifying
57 = 9x + 7 + -4x

Reorder the terms:
57 = 7 + 9x + -4x

Combine like terms: 9x + -4x = 5x
57 = 7 + 5x

Solving
57 = 7 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
57 + -5x = 7 + 5x + -5x

Combine like terms: 5x + -5x = 0
57 + -5x = 7 + 0
57 + -5x = 7

Add '-57' to each side of the equation.
57 + -57 + -5x = 7 + -57

Combine like terms: 57 + -57 = 0
0 + -5x = 7 + -57
-5x = 7 + -57

Combine like terms: 7 + -57 = -50
-5x = -50

Divide each side by '-5'.
x = 10

Simplifying
x = 10

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