-4(r+8)=-57

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Solution for -4(r+8)=-57 equation: 


Simplifying
-4(r + 8) = -57

Reorder the terms:
-4(8 + r) = -57
(8 * -4 + r * -4) = -57
(-32 + -4r) = -57

Solving
-32 + -4r = -57

Solving for variable 'r'.

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

Add '32' to each side of the equation.
-32 + 32 + -4r = -57 + 32

Combine like terms: -32 + 32 = 0
0 + -4r = -57 + 32
-4r = -57 + 32

Combine like terms: -57 + 32 = -25
-4r = -25

Divide each side by '-4'.
r = 6.25

Simplifying
r = 6.25

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