15+7r-7r=15

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Solution for 15+7r-7r=15 equation: 


Simplifying
15 + 7r + -7r = 15

Combine like terms: 7r + -7r = 0
15 + 0 = 15
15 = 15

Add '-15' to each side of the equation.
15 + -15 = 15 + -15

Combine like terms: 15 + -15 = 0
0 = 15 + -15

Combine like terms: 15 + -15 = 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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