12r-18=13r+18

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Solution for 12r-18=13r+18 equation:


Simplifying
12r + -18 = 13r + 18

Reorder the terms:
-18 + 12r = 13r + 18

Reorder the terms:
-18 + 12r = 18 + 13r

Solving
-18 + 12r = 18 + 13r

Solving for variable 'r'.

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

Add '-13r' to each side of the equation.
-18 + 12r + -13r = 18 + 13r + -13r

Combine like terms: 12r + -13r = -1r
-18 + -1r = 18 + 13r + -13r

Combine like terms: 13r + -13r = 0
-18 + -1r = 18 + 0
-18 + -1r = 18

Add '18' to each side of the equation.
-18 + 18 + -1r = 18 + 18

Combine like terms: -18 + 18 = 0
0 + -1r = 18 + 18
-1r = 18 + 18

Combine like terms: 18 + 18 = 36
-1r = 36

Divide each side by '-1'.
r = -36

Simplifying
r = -36

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