-3+x=40

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Solution for -3+x=40 equation: 


Simplifying
-3 + x = 40

Solving
-3 + x = 40

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + x = 40 + 3

Combine like terms: -3 + 3 = 0
0 + x = 40 + 3
x = 40 + 3

Combine like terms: 40 + 3 = 43
x = 43

Simplifying
x = 43

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