10x-20=9x+9

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


Simplifying
10x + -20 = 9x + 9

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

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

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

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

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

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

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

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

Divide each side by '1'.
x = 29

Simplifying
x = 29

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