4(r+5)=4r

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Solution for 4(r+5)=4r equation: 


Simplifying
4(r + 5) = 4r

Reorder the terms:
4(5 + r) = 4r
(5 * 4 + r * 4) = 4r
(20 + 4r) = 4r

Add '-4r' to each side of the equation.
20 + 4r + -4r = 4r + -4r

Combine like terms: 4r + -4r = 0
20 + 0 = 4r + -4r
20 = 4r + -4r

Combine like terms: 4r + -4r = 0
20 = 0

Solving
20 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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