9(x-9)+x=10(x-9)+9

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Solution for 9(x-9)+x=10(x-9)+9 equation: 


Simplifying
9(x + -9) + x = 10(x + -9) + 9

Reorder the terms:
9(-9 + x) + x = 10(x + -9) + 9
(-9 * 9 + x * 9) + x = 10(x + -9) + 9
(-81 + 9x) + x = 10(x + -9) + 9

Combine like terms: 9x + x = 10x
-81 + 10x = 10(x + -9) + 9

Reorder the terms:
-81 + 10x = 10(-9 + x) + 9
-81 + 10x = (-9 * 10 + x * 10) + 9
-81 + 10x = (-90 + 10x) + 9

Reorder the terms:
-81 + 10x = -90 + 9 + 10x

Combine like terms: -90 + 9 = -81
-81 + 10x = -81 + 10x

Add '81' to each side of the equation.
-81 + 81 + 10x = -81 + 81 + 10x

Combine like terms: -81 + 81 = 0
0 + 10x = -81 + 81 + 10x
10x = -81 + 81 + 10x

Combine like terms: -81 + 81 = 0
10x = 0 + 10x
10x = 10x

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

Combine like terms: 10x + -10x = 0
0 = 10x + -10x

Combine like terms: 10x + -10x = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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