(40+y)-y=40

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Solution for (40+y)-y=40 equation: 


Simplifying
(40 + y) + -1y = 40

Remove parenthesis around (40 + y)
40 + y + -1y = 40

Combine like terms: y + -1y = 0
40 + 0 = 40
40 = 40

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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