r+3=3r-8

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


Simplifying
r + 3 = 3r + -8

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

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

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

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

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

Add '-3' to each side of the equation.
3 + -3 + -2r = -8 + -3

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

Combine like terms: -8 + -3 = -11
-2r = -11

Divide each side by '-2'.
r = 5.5

Simplifying
r = 5.5

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