7r-2r-16r+7r=18

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Solution for 7r-2r-16r+7r=18 equation: 


Simplifying
7r + -2r + -16r + 7r = 18

Combine like terms: 7r + -2r = 5r
5r + -16r + 7r = 18

Combine like terms: 5r + -16r = -11r
-11r + 7r = 18

Combine like terms: -11r + 7r = -4r
-4r = 18

Solving
-4r = 18

Solving for variable 'r'.

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

Divide each side by '-4'.
r = -4.5

Simplifying
r = -4.5

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