2x-9=90-9x

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Solution for 2x-9=90-9x equation:


Simplifying
2x + -9 = 90 + -9x

Reorder the terms:
-9 + 2x = 90 + -9x

Solving
-9 + 2x = 90 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-9 + 2x + 9x = 90 + -9x + 9x

Combine like terms: 2x + 9x = 11x
-9 + 11x = 90 + -9x + 9x

Combine like terms: -9x + 9x = 0
-9 + 11x = 90 + 0
-9 + 11x = 90

Add '9' to each side of the equation.
-9 + 9 + 11x = 90 + 9

Combine like terms: -9 + 9 = 0
0 + 11x = 90 + 9
11x = 90 + 9

Combine like terms: 90 + 9 = 99
11x = 99

Divide each side by '11'.
x = 9

Simplifying
x = 9

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