9x-1=8x+9

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Solution for 9x-1=8x+9 equation:


Simplifying
9x + -1 = 8x + 9

Reorder the terms:
-1 + 9x = 8x + 9

Reorder the terms:
-1 + 9x = 9 + 8x

Solving
-1 + 9x = 9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-1 + 9x + -8x = 9 + 8x + -8x

Combine like terms: 9x + -8x = 1x
-1 + 1x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
-1 + 1x = 9 + 0
-1 + 1x = 9

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

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

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

Divide each side by '1'.
x = 10

Simplifying
x = 10

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