x+4x=-90

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Solution for x+4x=-90 equation: 


Simplifying
x + 4x = -90

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

Solving
5x = -90

Solving for variable 'x'.

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

Divide each side by '5'.
x = -18

Simplifying
x = -18

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