36=4(r-5)+4r

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Solution for 36=4(r-5)+4r equation:


Simplifying
36 = 4(r + -5) + 4r

Reorder the terms:
36 = 4(-5 + r) + 4r
36 = (-5 * 4 + r * 4) + 4r
36 = (-20 + 4r) + 4r

Combine like terms: 4r + 4r = 8r
36 = -20 + 8r

Solving
36 = -20 + 8r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-8r' to each side of the equation.
36 + -8r = -20 + 8r + -8r

Combine like terms: 8r + -8r = 0
36 + -8r = -20 + 0
36 + -8r = -20

Add '-36' to each side of the equation.
36 + -36 + -8r = -20 + -36

Combine like terms: 36 + -36 = 0
0 + -8r = -20 + -36
-8r = -20 + -36

Combine like terms: -20 + -36 = -56
-8r = -56

Divide each side by '-8'.
r = 7

Simplifying
r = 7

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