30-20r=r+2

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Solution for 30-20r=r+2 equation:


Simplifying
30 + -20r = r + 2

Reorder the terms:
30 + -20r = 2 + r

Solving
30 + -20r = 2 + 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.
30 + -20r + -1r = 2 + r + -1r

Combine like terms: -20r + -1r = -21r
30 + -21r = 2 + r + -1r

Combine like terms: r + -1r = 0
30 + -21r = 2 + 0
30 + -21r = 2

Add '-30' to each side of the equation.
30 + -30 + -21r = 2 + -30

Combine like terms: 30 + -30 = 0
0 + -21r = 2 + -30
-21r = 2 + -30

Combine like terms: 2 + -30 = -28
-21r = -28

Divide each side by '-21'.
r = 1.333333333

Simplifying
r = 1.333333333

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