-3=-r

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Solution for -3=-r equation: 


Simplifying
-3 = -1r

Solving
-3 = -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
-3 + r = -1r + r

Combine like terms: -1r + r = 0
-3 + r = 0

Add '3' to each side of the equation.
-3 + 3 + r = 0 + 3

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

Combine like terms: 0 + 3 = 3
r = 3

Simplifying
r = 3

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