64=-4(r-5)

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Solution for 64=-4(r-5) equation: 


Simplifying
64 = -4(r + -5)

Reorder the terms:
64 = -4(-5 + r)
64 = (-5 * -4 + r * -4)
64 = (20 + -4r)

Solving
64 = 20 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
64 + 4r = 20 + -4r + 4r

Combine like terms: -4r + 4r = 0
64 + 4r = 20 + 0
64 + 4r = 20

Add '-64' to each side of the equation.
64 + -64 + 4r = 20 + -64

Combine like terms: 64 + -64 = 0
0 + 4r = 20 + -64
4r = 20 + -64

Combine like terms: 20 + -64 = -44
4r = -44

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

Simplifying
r = -11

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