-4(5+r)=-28

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Solution for -4(5+r)=-28 equation: 


Simplifying
-4(5 + r) = -28
(5 * -4 + r * -4) = -28
(-20 + -4r) = -28

Solving
-20 + -4r = -28

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 = -28 + 20

Combine like terms: -20 + 20 = 0
0 + -4r = -28 + 20
-4r = -28 + 20

Combine like terms: -28 + 20 = -8
-4r = -8

Divide each side by '-4'.
r = 2

Simplifying
r = 2

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