10(3r+2)=80

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Solution for 10(3r+2)=80 equation:


Simplifying
10(3r + 2) = 80

Reorder the terms:
10(2 + 3r) = 80
(2 * 10 + 3r * 10) = 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 = 60
30r = 60

Divide each side by '30'.
r = 2

Simplifying
r = 2

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