42-x=9x-8

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Solution for 42-x=9x-8 equation:


Simplifying
42 + -1x = 9x + -8

Reorder the terms:
42 + -1x = -8 + 9x

Solving
42 + -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.
42 + -1x + -9x = -8 + 9x + -9x

Combine like terms: -1x + -9x = -10x
42 + -10x = -8 + 9x + -9x

Combine like terms: 9x + -9x = 0
42 + -10x = -8 + 0
42 + -10x = -8

Add '-42' to each side of the equation.
42 + -42 + -10x = -8 + -42

Combine like terms: 42 + -42 = 0
0 + -10x = -8 + -42
-10x = -8 + -42

Combine like terms: -8 + -42 = -50
-10x = -50

Divide each side by '-10'.
x = 5

Simplifying
x = 5

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