-5(r+12)+12=-9(4r+12)+11r

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Solution for -5(r+12)+12=-9(4r+12)+11r equation:


Simplifying
-5(r + 12) + 12 = -9(4r + 12) + 11r

Reorder the terms:
-5(12 + r) + 12 = -9(4r + 12) + 11r
(12 * -5 + r * -5) + 12 = -9(4r + 12) + 11r
(-60 + -5r) + 12 = -9(4r + 12) + 11r

Reorder the terms:
-60 + 12 + -5r = -9(4r + 12) + 11r

Combine like terms: -60 + 12 = -48
-48 + -5r = -9(4r + 12) + 11r

Reorder the terms:
-48 + -5r = -9(12 + 4r) + 11r
-48 + -5r = (12 * -9 + 4r * -9) + 11r
-48 + -5r = (-108 + -36r) + 11r

Combine like terms: -36r + 11r = -25r
-48 + -5r = -108 + -25r

Solving
-48 + -5r = -108 + -25r

Solving for variable 'r'.

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

Add '25r' to each side of the equation.
-48 + -5r + 25r = -108 + -25r + 25r

Combine like terms: -5r + 25r = 20r
-48 + 20r = -108 + -25r + 25r

Combine like terms: -25r + 25r = 0
-48 + 20r = -108 + 0
-48 + 20r = -108

Add '48' to each side of the equation.
-48 + 48 + 20r = -108 + 48

Combine like terms: -48 + 48 = 0
0 + 20r = -108 + 48
20r = -108 + 48

Combine like terms: -108 + 48 = -60
20r = -60

Divide each side by '20'.
r = -3

Simplifying
r = -3

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