-10x+9=-x+90

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Solution for -10x+9=-x+90 equation:


Simplifying
-10x + 9 = -1x + 90

Reorder the terms:
9 + -10x = -1x + 90

Reorder the terms:
9 + -10x = 90 + -1x

Solving
9 + -10x = 90 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
9 + -10x + x = 90 + -1x + x

Combine like terms: -10x + x = -9x
9 + -9x = 90 + -1x + x

Combine like terms: -1x + x = 0
9 + -9x = 90 + 0
9 + -9x = 90

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

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

Combine like terms: 90 + -9 = 81
-9x = 81

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

Simplifying
x = -9

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