8-4(-r+5)=

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Solution for 8-4(-r+5)= equation:


Simplifying
8 + -4(-1r + 5) = 0

Reorder the terms:
8 + -4(5 + -1r) = 0
8 + (5 * -4 + -1r * -4) = 0
8 + (-20 + 4r) = 0

Combine like terms: 8 + -20 = -12
-12 + 4r = 0

Solving
-12 + 4r = 0

Solving for variable 'r'.

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

Add '12' to each side of the equation.
-12 + 12 + 4r = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 4r = 0 + 12
4r = 0 + 12

Combine like terms: 0 + 12 = 12
4r = 12

Divide each side by '4'.
r = 3

Simplifying
r = 3

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