3r-2+5r=2r+12

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Solution for 3r-2+5r=2r+12 equation:


Simplifying
3r + -2 + 5r = 2r + 12

Reorder the terms:
-2 + 3r + 5r = 2r + 12

Combine like terms: 3r + 5r = 8r
-2 + 8r = 2r + 12

Reorder the terms:
-2 + 8r = 12 + 2r

Solving
-2 + 8r = 12 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-2 + 8r + -2r = 12 + 2r + -2r

Combine like terms: 8r + -2r = 6r
-2 + 6r = 12 + 2r + -2r

Combine like terms: 2r + -2r = 0
-2 + 6r = 12 + 0
-2 + 6r = 12

Add '2' to each side of the equation.
-2 + 2 + 6r = 12 + 2

Combine like terms: -2 + 2 = 0
0 + 6r = 12 + 2
6r = 12 + 2

Combine like terms: 12 + 2 = 14
6r = 14

Divide each side by '6'.
r = 2.333333333

Simplifying
r = 2.333333333

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