5(-5+3r)=-100

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Solution for 5(-5+3r)=-100 equation: 


Simplifying
5(-5 + 3r) = -100
(-5 * 5 + 3r * 5) = -100
(-25 + 15r) = -100

Solving
-25 + 15r = -100

Solving for variable 'r'.

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

Add '25' to each side of the equation.
-25 + 25 + 15r = -100 + 25

Combine like terms: -25 + 25 = 0
0 + 15r = -100 + 25
15r = -100 + 25

Combine like terms: -100 + 25 = -75
15r = -75

Divide each side by '15'.
r = -5

Simplifying
r = -5

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