87-(5x+12)=5(x+4)+x

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Solution for 87-(5x+12)=5(x+4)+x equation:


Simplifying
87 + -1(5x + 12) = 5(x + 4) + x

Reorder the terms:
87 + -1(12 + 5x) = 5(x + 4) + x
87 + (12 * -1 + 5x * -1) = 5(x + 4) + x
87 + (-12 + -5x) = 5(x + 4) + x

Combine like terms: 87 + -12 = 75
75 + -5x = 5(x + 4) + x

Reorder the terms:
75 + -5x = 5(4 + x) + x
75 + -5x = (4 * 5 + x * 5) + x
75 + -5x = (20 + 5x) + x

Combine like terms: 5x + x = 6x
75 + -5x = 20 + 6x

Solving
75 + -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.
75 + -5x + -6x = 20 + 6x + -6x

Combine like terms: -5x + -6x = -11x
75 + -11x = 20 + 6x + -6x

Combine like terms: 6x + -6x = 0
75 + -11x = 20 + 0
75 + -11x = 20

Add '-75' to each side of the equation.
75 + -75 + -11x = 20 + -75

Combine like terms: 75 + -75 = 0
0 + -11x = 20 + -75
-11x = 20 + -75

Combine like terms: 20 + -75 = -55
-11x = -55

Divide each side by '-11'.
x = 5

Simplifying
x = 5

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