-5(r-4)=-5r+20

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Solution for -5(r-4)=-5r+20 equation: 


Simplifying
-5(r + -4) = -5r + 20

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

Reorder the terms:
20 + -5r = 20 + -5r

Add '-20' to each side of the equation.
20 + -20 + -5r = 20 + -20 + -5r

Combine like terms: 20 + -20 = 0
0 + -5r = 20 + -20 + -5r
-5r = 20 + -20 + -5r

Combine like terms: 20 + -20 = 0
-5r = 0 + -5r
-5r = -5r

Add '5r' to each side of the equation.
-5r + 5r = -5r + 5r

Combine like terms: -5r + 5r = 0
0 = -5r + 5r

Combine like terms: -5r + 5r = 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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