18=r+7

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Solution for 18=r+7 equation:


Simplifying
18 = r + 7

Reorder the terms:
18 = 7 + r

Solving
18 = 7 + r

Solving for variable 'r'.

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

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

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

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

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

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

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

Simplifying
r = 11

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