6(r+2)=90

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Solution for 6(r+2)=90 equation: 


Simplifying
6(r + 2) = 90

Reorder the terms:
6(2 + r) = 90
(2 * 6 + r * 6) = 90
(12 + 6r) = 90

Solving
12 + 6r = 90

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + 6r = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 6r = 90 + -12
6r = 90 + -12

Combine like terms: 90 + -12 = 78
6r = 78

Divide each side by '6'.
r = 13

Simplifying
r = 13

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