6x+90=15-3x

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Solution for 6x+90=15-3x equation: 


Simplifying
6x + 90 = 15 + -3x

Reorder the terms:
90 + 6x = 15 + -3x

Solving
90 + 6x = 15 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
90 + 6x + 3x = 15 + -3x + 3x

Combine like terms: 6x + 3x = 9x
90 + 9x = 15 + -3x + 3x

Combine like terms: -3x + 3x = 0
90 + 9x = 15 + 0
90 + 9x = 15

Add '-90' to each side of the equation.
90 + -90 + 9x = 15 + -90

Combine like terms: 90 + -90 = 0
0 + 9x = 15 + -90
9x = 15 + -90

Combine like terms: 15 + -90 = -75
9x = -75

Divide each side by '9'.
x = -8.333333333

Simplifying
x = -8.333333333

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