6x+9x=-90

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Solution for 6x+9x=-90 equation: 


Simplifying
6x + 9x = -90

Combine like terms: 6x + 9x = 15x
15x = -90

Solving
15x = -90

Solving for variable 'x'.

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

Divide each side by '15'.
x = -6

Simplifying
x = -6

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