-3+3(1+5r)=-90

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Solution for -3+3(1+5r)=-90 equation: 


Simplifying
-3 + 3(1 + 5r) = -90
-3 + (1 * 3 + 5r * 3) = -90
-3 + (3 + 15r) = -90

Combine like terms: -3 + 3 = 0
0 + 15r = -90
15r = -90

Solving
15r = -90

Solving for variable 'r'.

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

Divide each side by '15'.
r = -6

Simplifying
r = -6

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