-4r-15=-3

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Solution for -4r-15=-3 equation: 


Simplifying
-4r + -15 = -3

Reorder the terms:
-15 + -4r = -3

Solving
-15 + -4r = -3

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 + -4r = -3 + 15

Combine like terms: -15 + 15 = 0
0 + -4r = -3 + 15
-4r = -3 + 15

Combine like terms: -3 + 15 = 12
-4r = 12

Divide each side by '-4'.
r = -3

Simplifying
r = -3

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