-4(2r+5)=-4

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Solution for -4(2r+5)=-4 equation: 


Simplifying
-4(2r + 5) = -4

Reorder the terms:
-4(5 + 2r) = -4
(5 * -4 + 2r * -4) = -4
(-20 + -8r) = -4

Solving
-20 + -8r = -4

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 + -8r = -4 + 20

Combine like terms: -20 + 20 = 0
0 + -8r = -4 + 20
-8r = -4 + 20

Combine like terms: -4 + 20 = 16
-8r = 16

Divide each side by '-8'.
r = -2

Simplifying
r = -2

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