57-(5x+15)=5(x+4)+x

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Solution for 57-(5x+15)=5(x+4)+x equation:


Simplifying
57 + -1(5x + 15) = 5(x + 4) + x

Reorder the terms:
57 + -1(15 + 5x) = 5(x + 4) + x
57 + (15 * -1 + 5x * -1) = 5(x + 4) + x
57 + (-15 + -5x) = 5(x + 4) + x

Combine like terms: 57 + -15 = 42
42 + -5x = 5(x + 4) + x

Reorder the terms:
42 + -5x = 5(4 + x) + x
42 + -5x = (4 * 5 + x * 5) + x
42 + -5x = (20 + 5x) + x

Combine like terms: 5x + x = 6x
42 + -5x = 20 + 6x

Solving
42 + -5x = 20 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
42 + -5x + -6x = 20 + 6x + -6x

Combine like terms: -5x + -6x = -11x
42 + -11x = 20 + 6x + -6x

Combine like terms: 6x + -6x = 0
42 + -11x = 20 + 0
42 + -11x = 20

Add '-42' to each side of the equation.
42 + -42 + -11x = 20 + -42

Combine like terms: 42 + -42 = 0
0 + -11x = 20 + -42
-11x = 20 + -42

Combine like terms: 20 + -42 = -22
-11x = -22

Divide each side by '-11'.
x = 2

Simplifying
x = 2

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