2(9r-12)=12(2r+5)

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Solution for 2(9r-12)=12(2r+5) equation:


Simplifying
2(9r + -12) = 12(2r + 5)

Reorder the terms:
2(-12 + 9r) = 12(2r + 5)
(-12 * 2 + 9r * 2) = 12(2r + 5)
(-24 + 18r) = 12(2r + 5)

Reorder the terms:
-24 + 18r = 12(5 + 2r)
-24 + 18r = (5 * 12 + 2r * 12)
-24 + 18r = (60 + 24r)

Solving
-24 + 18r = 60 + 24r

Solving for variable 'r'.

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

Add '-24r' to each side of the equation.
-24 + 18r + -24r = 60 + 24r + -24r

Combine like terms: 18r + -24r = -6r
-24 + -6r = 60 + 24r + -24r

Combine like terms: 24r + -24r = 0
-24 + -6r = 60 + 0
-24 + -6r = 60

Add '24' to each side of the equation.
-24 + 24 + -6r = 60 + 24

Combine like terms: -24 + 24 = 0
0 + -6r = 60 + 24
-6r = 60 + 24

Combine like terms: 60 + 24 = 84
-6r = 84

Divide each side by '-6'.
r = -14

Simplifying
r = -14

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