40+x=9

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Solution for 40+x=9 equation: 


Simplifying
40 + x = 9

Solving
40 + x = 9

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + x = 9 + -40

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

Combine like terms: 9 + -40 = -31
x = -31

Simplifying
x = -31

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