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 for easier multiplication:
-18 + 12r = 13 * 18r

Multiply 13 * 18
-18 + 12r = 234r

Solving
-18 + 12r = 234r

Solving for variable 'r'.

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

Add '-234r' to each side of the equation.
-18 + 12r + -234r = 234r + -234r

Combine like terms: 12r + -234r = -222r
-18 + -222r = 234r + -234r

Combine like terms: 234r + -234r = 0
-18 + -222r = 0

Add '18' to each side of the equation.
-18 + 18 + -222r = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -222r = 0 + 18
-222r = 0 + 18

Combine like terms: 0 + 18 = 18
-222r = 18

Divide each side by '-222'.
r = -0.08108108108

Simplifying
r = -0.08108108108

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