8x+90=7x-20

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Solution for 8x+90=7x-20 equation:


Simplifying
8x + 90 = 7x + -20

Reorder the terms:
90 + 8x = 7x + -20

Reorder the terms:
90 + 8x = -20 + 7x

Solving
90 + 8x = -20 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
90 + 8x + -7x = -20 + 7x + -7x

Combine like terms: 8x + -7x = 1x
90 + 1x = -20 + 7x + -7x

Combine like terms: 7x + -7x = 0
90 + 1x = -20 + 0
90 + 1x = -20

Add '-90' to each side of the equation.
90 + -90 + 1x = -20 + -90

Combine like terms: 90 + -90 = 0
0 + 1x = -20 + -90
1x = -20 + -90

Combine like terms: -20 + -90 = -110
1x = -110

Divide each side by '1'.
x = -110

Simplifying
x = -110

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