(x+15)=(4x-20)

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Solution for (x+15)=(4x-20) equation: 


Simplifying
(x + 15) = (4x + -20)

Reorder the terms:
(15 + x) = (4x + -20)

Remove parenthesis around (15 + x)
15 + x = (4x + -20)

Reorder the terms:
15 + x = (-20 + 4x)

Remove parenthesis around (-20 + 4x)
15 + x = -20 + 4x

Solving
15 + x = -20 + 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.
15 + x + -4x = -20 + 4x + -4x

Combine like terms: x + -4x = -3x
15 + -3x = -20 + 4x + -4x

Combine like terms: 4x + -4x = 0
15 + -3x = -20 + 0
15 + -3x = -20

Add '-15' to each side of the equation.
15 + -15 + -3x = -20 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = -20 + -15
-3x = -20 + -15

Combine like terms: -20 + -15 = -35
-3x = -35

Divide each side by '-3'.
x = 11.66666667

Simplifying
x = 11.66666667

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