71-39=x-40

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Solution for 71-39=x-40 equation:


Simplifying
71 + -39 = x + -40

Combine like terms: 71 + -39 = 32
32 = x + -40

Reorder the terms:
32 = -40 + x

Solving
32 = -40 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
32 + -1x = -40 + x + -1x

Combine like terms: x + -1x = 0
32 + -1x = -40 + 0
32 + -1x = -40

Add '-32' to each side of the equation.
32 + -32 + -1x = -40 + -32

Combine like terms: 32 + -32 = 0
0 + -1x = -40 + -32
-1x = -40 + -32

Combine like terms: -40 + -32 = -72
-1x = -72

Divide each side by '-1'.
x = 72

Simplifying
x = 72

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