3r+-8=-18

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Solution for 3r+-8=-18 equation: 


Simplifying
3r + -8 = -18

Reorder the terms:
-8 + 3r = -18

Solving
-8 + 3r = -18

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + 3r = -18 + 8

Combine like terms: -8 + 8 = 0
0 + 3r = -18 + 8
3r = -18 + 8

Combine like terms: -18 + 8 = -10
3r = -10

Divide each side by '3'.
r = -3.333333333

Simplifying
r = -3.333333333

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