4(90-x)=x

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Solution for 4(90-x)=x equation:


Simplifying
4(90 + -1x) = x
(90 * 4 + -1x * 4) = x
(360 + -4x) = x

Solving
360 + -4x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
360 + -4x + -1x = x + -1x

Combine like terms: -4x + -1x = -5x
360 + -5x = x + -1x

Combine like terms: x + -1x = 0
360 + -5x = 0

Add '-360' to each side of the equation.
360 + -360 + -5x = 0 + -360

Combine like terms: 360 + -360 = 0
0 + -5x = 0 + -360
-5x = 0 + -360

Combine like terms: 0 + -360 = -360
-5x = -360

Divide each side by '-5'.
x = 72

Simplifying
x = 72

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