11-r=18

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Solution for 11-r=18 equation:


Simplifying
11 + -1r = 18

Solving
11 + -1r = 18

Solving for variable 'r'.

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

Add '-11' to each side of the equation.
11 + -11 + -1r = 18 + -11

Combine like terms: 11 + -11 = 0
0 + -1r = 18 + -11
-1r = 18 + -11

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

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

Simplifying
r = -7

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