7r-18=7+2r

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


Simplifying
7r + -18 = 7 + 2r

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

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

Combine like terms: 7r + -2r = 5r
-18 + 5r = 7 + 2r + -2r

Combine like terms: 2r + -2r = 0
-18 + 5r = 7 + 0
-18 + 5r = 7

Add '18' to each side of the equation.
-18 + 18 + 5r = 7 + 18

Combine like terms: -18 + 18 = 0
0 + 5r = 7 + 18
5r = 7 + 18

Combine like terms: 7 + 18 = 25
5r = 25

Divide each side by '5'.
r = 5

Simplifying
r = 5

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