9r+3r=10+5r

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Solution for 9r+3r=10+5r equation: 


Simplifying
9r + 3r = 10 + 5r

Combine like terms: 9r + 3r = 12r
12r = 10 + 5r

Solving
12r = 10 + 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.
12r + -5r = 10 + 5r + -5r

Combine like terms: 12r + -5r = 7r
7r = 10 + 5r + -5r

Combine like terms: 5r + -5r = 0
7r = 10 + 0
7r = 10

Divide each side by '7'.
r = 1.428571429

Simplifying
r = 1.428571429

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