6+7x+x=-90

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Solution for 6+7x+x=-90 equation: 


Simplifying
6 + 7x + x = -90

Combine like terms: 7x + x = 8x
6 + 8x = -90

Solving
6 + 8x = -90

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 8x = -90 + -6

Combine like terms: 6 + -6 = 0
0 + 8x = -90 + -6
8x = -90 + -6

Combine like terms: -90 + -6 = -96
8x = -96

Divide each side by '8'.
x = -12

Simplifying
x = -12

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