7=r+18

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Solution for 7=r+18 equation:


Simplifying
7 = r + 18

Reorder the terms:
7 = 18 + r

Solving
7 = 18 + 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.
7 + -1r = 18 + r + -1r

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

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

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

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

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

Simplifying
r = -11

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