-7+18r=12r+7r-18

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Solution for -7+18r=12r+7r-18 equation:


Simplifying
-7 + 18r = 12r + 7r + -18

Reorder the terms:
-7 + 18r = -18 + 12r + 7r

Combine like terms: 12r + 7r = 19r
-7 + 18r = -18 + 19r

Solving
-7 + 18r = -18 + 19r

Solving for variable 'r'.

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

Add '-19r' to each side of the equation.
-7 + 18r + -19r = -18 + 19r + -19r

Combine like terms: 18r + -19r = -1r
-7 + -1r = -18 + 19r + -19r

Combine like terms: 19r + -19r = 0
-7 + -1r = -18 + 0
-7 + -1r = -18

Add '7' to each side of the equation.
-7 + 7 + -1r = -18 + 7

Combine like terms: -7 + 7 = 0
0 + -1r = -18 + 7
-1r = -18 + 7

Combine like terms: -18 + 7 = -11
-1r = -11

Divide each side by '-1'.
r = 11

Simplifying
r = 11

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