9+9r-1=5r+71-3r

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Solution for 9+9r-1=5r+71-3r equation:


Simplifying
9 + 9r + -1 = 5r + 71 + -3r

Reorder the terms:
9 + -1 + 9r = 5r + 71 + -3r

Combine like terms: 9 + -1 = 8
8 + 9r = 5r + 71 + -3r

Reorder the terms:
8 + 9r = 71 + 5r + -3r

Combine like terms: 5r + -3r = 2r
8 + 9r = 71 + 2r

Solving
8 + 9r = 71 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
8 + 9r + -2r = 71 + 2r + -2r

Combine like terms: 9r + -2r = 7r
8 + 7r = 71 + 2r + -2r

Combine like terms: 2r + -2r = 0
8 + 7r = 71 + 0
8 + 7r = 71

Add '-8' to each side of the equation.
8 + -8 + 7r = 71 + -8

Combine like terms: 8 + -8 = 0
0 + 7r = 71 + -8
7r = 71 + -8

Combine like terms: 71 + -8 = 63
7r = 63

Divide each side by '7'.
r = 9

Simplifying
r = 9

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