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

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


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

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

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

Combine like terms: 8r + -4r = 4r
-4 + 4r = 4(4r + -5) + -4

Reorder the terms:
-4 + 4r = 4(-5 + 4r) + -4
-4 + 4r = (-5 * 4 + 4r * 4) + -4
-4 + 4r = (-20 + 16r) + -4

Reorder the terms:
-4 + 4r = -20 + -4 + 16r

Combine like terms: -20 + -4 = -24
-4 + 4r = -24 + 16r

Solving
-4 + 4r = -24 + 16r

Solving for variable 'r'.

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

Add '-16r' to each side of the equation.
-4 + 4r + -16r = -24 + 16r + -16r

Combine like terms: 4r + -16r = -12r
-4 + -12r = -24 + 16r + -16r

Combine like terms: 16r + -16r = 0
-4 + -12r = -24 + 0
-4 + -12r = -24

Add '4' to each side of the equation.
-4 + 4 + -12r = -24 + 4

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

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

Divide each side by '-12'.
r = 1.666666667

Simplifying
r = 1.666666667

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