1-3r=8

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Solution for 1-3r=8 equation: 


Simplifying
1 + -3r = 8

Solving
1 + -3r = 8

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + -3r = 8 + -1

Combine like terms: 1 + -1 = 0
0 + -3r = 8 + -1
-3r = 8 + -1

Combine like terms: 8 + -1 = 7
-3r = 7

Divide each side by '-3'.
r = -2.333333333

Simplifying
r = -2.333333333

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