18-2r=16

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Solution for 18-2r=16 equation: 


Simplifying
18 + -2r = 16

Solving
18 + -2r = 16

Solving for variable 'r'.

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

Add '-18' to each side of the equation.
18 + -18 + -2r = 16 + -18

Combine like terms: 18 + -18 = 0
0 + -2r = 16 + -18
-2r = 16 + -18

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

Divide each side by '-2'.
r = 1

Simplifying
r = 1

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