4r+(-13)=-57

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Solution for 4r+(-13)=-57 equation: 


Simplifying
4r + (-13) = -57
4r + -13 = -57

Reorder the terms:
-13 + 4r = -57

Solving
-13 + 4r = -57

Solving for variable 'r'.

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

Add '13' to each side of the equation.
-13 + 13 + 4r = -57 + 13

Combine like terms: -13 + 13 = 0
0 + 4r = -57 + 13
4r = -57 + 13

Combine like terms: -57 + 13 = -44
4r = -44

Divide each side by '4'.
r = -11

Simplifying
r = -11

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