6r-4r+8=7r-r

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Solution for 6r-4r+8=7r-r equation:


Simplifying
6r + -4r + 8 = 7r + -1r

Reorder the terms:
8 + 6r + -4r = 7r + -1r

Combine like terms: 6r + -4r = 2r
8 + 2r = 7r + -1r

Combine like terms: 7r + -1r = 6r
8 + 2r = 6r

Solving
8 + 2r = 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
8 + 2r + -6r = 6r + -6r

Combine like terms: 2r + -6r = -4r
8 + -4r = 6r + -6r

Combine like terms: 6r + -6r = 0
8 + -4r = 0

Add '-8' to each side of the equation.
8 + -8 + -4r = 0 + -8

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

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

Divide each side by '-4'.
r = 2

Simplifying
r = 2

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