45-4r=45-4r

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Solution for 45-4r=45-4r equation: 


Simplifying
45 + -4r = 45 + -4r

Add '-45' to each side of the equation.
45 + -45 + -4r = 45 + -45 + -4r

Combine like terms: 45 + -45 = 0
0 + -4r = 45 + -45 + -4r
-4r = 45 + -45 + -4r

Combine like terms: 45 + -45 = 0
-4r = 0 + -4r
-4r = -4r

Add '4r' to each side of the equation.
-4r + 4r = -4r + 4r

Combine like terms: -4r + 4r = 0
0 = -4r + 4r

Combine like terms: -4r + 4r = 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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