28-18+30=40

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Solution for 28-18+30=40 equation: 


Simplifying
28 + -18 + 30 = 40

Combine like terms: 28 + -18 = 10
10 + 30 = 40

Combine like terms: 10 + 30 = 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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