15-(x)=4x

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


Simplifying
15 + -1(x) = 4x

Solving
15 + -1x = 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 + -1x + -4x = 4x + -4x

Combine like terms: -1x + -4x = -5x
15 + -5x = 4x + -4x

Combine like terms: 4x + -4x = 0
15 + -5x = 0

Add '-15' to each side of the equation.
15 + -15 + -5x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -5x = 0 + -15
-5x = 0 + -15

Combine like terms: 0 + -15 = -15
-5x = -15

Divide each side by '-5'.
x = 3

Simplifying
x = 3

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