-8-r=r-4r

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Solution for -8-r=r-4r equation:


Simplifying
-8 + -1r = r + -4r

Combine like terms: r + -4r = -3r
-8 + -1r = -3r

Solving
-8 + -1r = -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
-8 + -1r + 3r = -3r + 3r

Combine like terms: -1r + 3r = 2r
-8 + 2r = -3r + 3r

Combine like terms: -3r + 3r = 0
-8 + 2r = 0

Add '8' to each side of the equation.
-8 + 8 + 2r = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 2r = 0 + 8
2r = 0 + 8

Combine like terms: 0 + 8 = 8
2r = 8

Divide each side by '2'.
r = 4

Simplifying
r = 4

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