x+(4x-12)=90

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Solution for x+(4x-12)=90 equation:


Simplifying
x + (4x + -12) = 90

Reorder the terms:
x + (-12 + 4x) = 90

Remove parenthesis around (-12 + 4x)
x + -12 + 4x = 90

Reorder the terms:
-12 + x + 4x = 90

Combine like terms: x + 4x = 5x
-12 + 5x = 90

Solving
-12 + 5x = 90

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 5x = 90 + 12

Combine like terms: -12 + 12 = 0
0 + 5x = 90 + 12
5x = 90 + 12

Combine like terms: 90 + 12 = 102
5x = 102

Divide each side by '5'.
x = 20.4

Simplifying
x = 20.4

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