7-7r=2r+18

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Solution for 7-7r=2r+18 equation:


Simplifying
7 + -7r = 2r + 18

Reorder the terms:
7 + -7r = 18 + 2r

Solving
7 + -7r = 18 + 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.
7 + -7r + -2r = 18 + 2r + -2r

Combine like terms: -7r + -2r = -9r
7 + -9r = 18 + 2r + -2r

Combine like terms: 2r + -2r = 0
7 + -9r = 18 + 0
7 + -9r = 18

Add '-7' to each side of the equation.
7 + -7 + -9r = 18 + -7

Combine like terms: 7 + -7 = 0
0 + -9r = 18 + -7
-9r = 18 + -7

Combine like terms: 18 + -7 = 11
-9r = 11

Divide each side by '-9'.
r = -1.222222222

Simplifying
r = -1.222222222

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