-4(r+5)=-57

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Solution for -4(r+5)=-57 equation: 


Simplifying
-4(r + 5) = -57

Reorder the terms:
-4(5 + r) = -57
(5 * -4 + r * -4) = -57
(-20 + -4r) = -57

Solving
-20 + -4r = -57

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 + -4r = -57 + 20

Combine like terms: -20 + 20 = 0
0 + -4r = -57 + 20
-4r = -57 + 20

Combine like terms: -57 + 20 = -37
-4r = -37

Divide each side by '-4'.
r = 9.25

Simplifying
r = 9.25

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