5(-4+6r)=80

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Solution for 5(-4+6r)=80 equation: 


Simplifying
5(-4 + 6r) = 80
(-4 * 5 + 6r * 5) = 80
(-20 + 30r) = 80

Solving
-20 + 30r = 80

Solving for variable 'r'.

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

Add '20' to each side of the equation.
-20 + 20 + 30r = 80 + 20

Combine like terms: -20 + 20 = 0
0 + 30r = 80 + 20
30r = 80 + 20

Combine like terms: 80 + 20 = 100
30r = 100

Divide each side by '30'.
r = 3.333333333

Simplifying
r = 3.333333333

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