5r+2(r-8)-3(4r)+8=

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Solution for 5r+2(r-8)-3(4r)+8= equation:


Simplifying
5r + 2(r + -8) + -3(4r) + 8 = 0

Reorder the terms:
5r + 2(-8 + r) + -3(4r) + 8 = 0
5r + (-8 * 2 + r * 2) + -3(4r) + 8 = 0
5r + (-16 + 2r) + -3(4r) + 8 = 0

Remove parenthesis around (4r)
5r + -16 + 2r + -3 * 4r + 8 = 0

Multiply -3 * 4
5r + -16 + 2r + -12r + 8 = 0

Reorder the terms:
-16 + 8 + 5r + 2r + -12r = 0

Combine like terms: -16 + 8 = -8
-8 + 5r + 2r + -12r = 0

Combine like terms: 5r + 2r = 7r
-8 + 7r + -12r = 0

Combine like terms: 7r + -12r = -5r
-8 + -5r = 0

Solving
-8 + -5r = 0

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + -5r = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -5r = 0 + 8
-5r = 0 + 8

Combine like terms: 0 + 8 = 8
-5r = 8

Divide each side by '-5'.
r = -1.6

Simplifying
r = -1.6

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