8-5r=r-4

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Solution for 8-5r=r-4 equation:


Simplifying
8 + -5r = r + -4

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

Solving
8 + -5r = -4 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
8 + -5r + -1r = -4 + r + -1r

Combine like terms: -5r + -1r = -6r
8 + -6r = -4 + r + -1r

Combine like terms: r + -1r = 0
8 + -6r = -4 + 0
8 + -6r = -4

Add '-8' to each side of the equation.
8 + -8 + -6r = -4 + -8

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

Combine like terms: -4 + -8 = -12
-6r = -12

Divide each side by '-6'.
r = 2

Simplifying
r = 2

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