-5r+20=-15

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Solution for -5r+20=-15 equation: 


Simplifying
-5r + 20 = -15

Reorder the terms:
20 + -5r = -15

Solving
20 + -5r = -15

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 + -5r = -15 + -20

Combine like terms: 20 + -20 = 0
0 + -5r = -15 + -20
-5r = -15 + -20

Combine like terms: -15 + -20 = -35
-5r = -35

Divide each side by '-5'.
r = 7

Simplifying
r = 7

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