75-30=45

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Solution for 75-30=45 equation: 


Simplifying
75 + -30 = 45

Combine like terms: 75 + -30 = 45
45 = 45

Add '-45' to each side of the equation.
45 + -45 = 45 + -45

Combine like terms: 45 + -45 = 0
0 = 45 + -45

Combine like terms: 45 + -45 = 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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