5(-9r-12)=60-5r

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Solution for 5(-9r-12)=60-5r equation:


Simplifying
5(-9r + -12) = 60 + -5r

Reorder the terms:
5(-12 + -9r) = 60 + -5r
(-12 * 5 + -9r * 5) = 60 + -5r
(-60 + -45r) = 60 + -5r

Solving
-60 + -45r = 60 + -5r

Solving for variable 'r'.

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

Add '5r' to each side of the equation.
-60 + -45r + 5r = 60 + -5r + 5r

Combine like terms: -45r + 5r = -40r
-60 + -40r = 60 + -5r + 5r

Combine like terms: -5r + 5r = 0
-60 + -40r = 60 + 0
-60 + -40r = 60

Add '60' to each side of the equation.
-60 + 60 + -40r = 60 + 60

Combine like terms: -60 + 60 = 0
0 + -40r = 60 + 60
-40r = 60 + 60

Combine like terms: 60 + 60 = 120
-40r = 120

Divide each side by '-40'.
r = -3

Simplifying
r = -3

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