-3(r+5)=-40

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Solution for -3(r+5)=-40 equation: 


Simplifying
-3(r + 5) = -40

Reorder the terms:
-3(5 + r) = -40
(5 * -3 + r * -3) = -40
(-15 + -3r) = -40

Solving
-15 + -3r = -40

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + -3r = -40 + 15

Combine like terms: -15 + 15 = 0
0 + -3r = -40 + 15
-3r = -40 + 15

Combine like terms: -40 + 15 = -25
-3r = -25

Divide each side by '-3'.
r = 8.333333333

Simplifying
r = 8.333333333

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