11=18+7r

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Solution for 11=18+7r equation:


Simplifying
11 = 18 + 7r

Solving
11 = 18 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
11 + -7r = 18 + 7r + -7r

Combine like terms: 7r + -7r = 0
11 + -7r = 18 + 0
11 + -7r = 18

Add '-11' to each side of the equation.
11 + -11 + -7r = 18 + -11

Combine like terms: 11 + -11 = 0
0 + -7r = 18 + -11
-7r = 18 + -11

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

Divide each side by '-7'.
r = -1

Simplifying
r = -1

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