3r-15=-12+2r

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Solution for 3r-15=-12+2r equation:


Simplifying
3r + -15 = -12 + 2r

Reorder the terms:
-15 + 3r = -12 + 2r

Solving
-15 + 3r = -12 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-15 + 3r + -2r = -12 + 2r + -2r

Combine like terms: 3r + -2r = 1r
-15 + 1r = -12 + 2r + -2r

Combine like terms: 2r + -2r = 0
-15 + 1r = -12 + 0
-15 + 1r = -12

Add '15' to each side of the equation.
-15 + 15 + 1r = -12 + 15

Combine like terms: -15 + 15 = 0
0 + 1r = -12 + 15
1r = -12 + 15

Combine like terms: -12 + 15 = 3
1r = 3

Divide each side by '1'.
r = 3

Simplifying
r = 3

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