3r-2=r+8

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Solution for 3r-2=r+8 equation:


Simplifying
3r + -2 = r + 8

Reorder the terms:
-2 + 3r = r + 8

Reorder the terms:
-2 + 3r = 8 + r

Solving
-2 + 3r = 8 + 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.
-2 + 3r + -1r = 8 + r + -1r

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

Combine like terms: r + -1r = 0
-2 + 2r = 8 + 0
-2 + 2r = 8

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

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

Combine like terms: 8 + 2 = 10
2r = 10

Divide each side by '2'.
r = 5

Simplifying
r = 5

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