-x+40=9x

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Solution for -x+40=9x equation:


Simplifying
-1x + 40 = 9x

Reorder the terms:
40 + -1x = 9x

Solving
40 + -1x = 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.
40 + -1x + -9x = 9x + -9x

Combine like terms: -1x + -9x = -10x
40 + -10x = 9x + -9x

Combine like terms: 9x + -9x = 0
40 + -10x = 0

Add '-40' to each side of the equation.
40 + -40 + -10x = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -10x = 0 + -40
-10x = 0 + -40

Combine like terms: 0 + -40 = -40
-10x = -40

Divide each side by '-10'.
x = 4

Simplifying
x = 4

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