13-x=9x+8

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Solution for 13-x=9x+8 equation:


Simplifying
13 + -1x = 9x + 8

Reorder the terms:
13 + -1x = 8 + 9x

Solving
13 + -1x = 8 + 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.
13 + -1x + -9x = 8 + 9x + -9x

Combine like terms: -1x + -9x = -10x
13 + -10x = 8 + 9x + -9x

Combine like terms: 9x + -9x = 0
13 + -10x = 8 + 0
13 + -10x = 8

Add '-13' to each side of the equation.
13 + -13 + -10x = 8 + -13

Combine like terms: 13 + -13 = 0
0 + -10x = 8 + -13
-10x = 8 + -13

Combine like terms: 8 + -13 = -5
-10x = -5

Divide each side by '-10'.
x = 0.5

Simplifying
x = 0.5

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