-9x-9=20-10x

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Solution for -9x-9=20-10x equation:


Simplifying
-9x + -9 = 20 + -10x

Reorder the terms:
-9 + -9x = 20 + -10x

Solving
-9 + -9x = 20 + -10x

Solving for variable 'x'.

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

Add '10x' to each side of the equation.
-9 + -9x + 10x = 20 + -10x + 10x

Combine like terms: -9x + 10x = 1x
-9 + 1x = 20 + -10x + 10x

Combine like terms: -10x + 10x = 0
-9 + 1x = 20 + 0
-9 + 1x = 20

Add '9' to each side of the equation.
-9 + 9 + 1x = 20 + 9

Combine like terms: -9 + 9 = 0
0 + 1x = 20 + 9
1x = 20 + 9

Combine like terms: 20 + 9 = 29
1x = 29

Divide each side by '1'.
x = 29

Simplifying
x = 29

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