3+3r-1=8r+20-3r

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Solution for 3+3r-1=8r+20-3r equation: 


Simplifying
3 + 3r + -1 = 8r + 20 + -3r

Reorder the terms:
3 + -1 + 3r = 8r + 20 + -3r

Combine like terms: 3 + -1 = 2
2 + 3r = 8r + 20 + -3r

Reorder the terms:
2 + 3r = 20 + 8r + -3r

Combine like terms: 8r + -3r = 5r
2 + 3r = 20 + 5r

Solving
2 + 3r = 20 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
2 + 3r + -5r = 20 + 5r + -5r

Combine like terms: 3r + -5r = -2r
2 + -2r = 20 + 5r + -5r

Combine like terms: 5r + -5r = 0
2 + -2r = 20 + 0
2 + -2r = 20

Add '-2' to each side of the equation.
2 + -2 + -2r = 20 + -2

Combine like terms: 2 + -2 = 0
0 + -2r = 20 + -2
-2r = 20 + -2

Combine like terms: 20 + -2 = 18
-2r = 18

Divide each side by '-2'.
r = -9

Simplifying
r = -9

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