-2(-5-8r)=122

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Solution for -2(-5-8r)=122 equation: 


Simplifying
-2(-5 + -8r) = 122
(-5 * -2 + -8r * -2) = 122
(10 + 16r) = 122

Solving
10 + 16r = 122

Solving for variable 'r'.

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

Add '-10' to each side of the equation.
10 + -10 + 16r = 122 + -10

Combine like terms: 10 + -10 = 0
0 + 16r = 122 + -10
16r = 122 + -10

Combine like terms: 122 + -10 = 112
16r = 112

Divide each side by '16'.
r = 7

Simplifying
r = 7

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