-3(4r+8)+4(r-5)=

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Solution for -3(4r+8)+4(r-5)= equation:


Simplifying
-3(4r + 8) + 4(r + -5) = 0

Reorder the terms:
-3(8 + 4r) + 4(r + -5) = 0
(8 * -3 + 4r * -3) + 4(r + -5) = 0
(-24 + -12r) + 4(r + -5) = 0

Reorder the terms:
-24 + -12r + 4(-5 + r) = 0
-24 + -12r + (-5 * 4 + r * 4) = 0
-24 + -12r + (-20 + 4r) = 0

Reorder the terms:
-24 + -20 + -12r + 4r = 0

Combine like terms: -24 + -20 = -44
-44 + -12r + 4r = 0

Combine like terms: -12r + 4r = -8r
-44 + -8r = 0

Solving
-44 + -8r = 0

Solving for variable 'r'.

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

Add '44' to each side of the equation.
-44 + 44 + -8r = 0 + 44

Combine like terms: -44 + 44 = 0
0 + -8r = 0 + 44
-8r = 0 + 44

Combine like terms: 0 + 44 = 44
-8r = 44

Divide each side by '-8'.
r = -5.5

Simplifying
r = -5.5

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