10x-9=9(x+9)-1

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Solution for 10x-9=9(x+9)-1 equation:


Simplifying
10x + -9 = 9(x + 9) + -1

Reorder the terms:
-9 + 10x = 9(x + 9) + -1

Reorder the terms:
-9 + 10x = 9(9 + x) + -1
-9 + 10x = (9 * 9 + x * 9) + -1
-9 + 10x = (81 + 9x) + -1

Reorder the terms:
-9 + 10x = 81 + -1 + 9x

Combine like terms: 81 + -1 = 80
-9 + 10x = 80 + 9x

Solving
-9 + 10x = 80 + 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 + 10x + -9x = 80 + 9x + -9x

Combine like terms: 10x + -9x = 1x
-9 + 1x = 80 + 9x + -9x

Combine like terms: 9x + -9x = 0
-9 + 1x = 80 + 0
-9 + 1x = 80

Add '9' to each side of the equation.
-9 + 9 + 1x = 80 + 9

Combine like terms: -9 + 9 = 0
0 + 1x = 80 + 9
1x = 80 + 9

Combine like terms: 80 + 9 = 89
1x = 89

Divide each side by '1'.
x = 89

Simplifying
x = 89

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