7r+2r=15-6r

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Solution for 7r+2r=15-6r equation: 


Simplifying
7r + 2r = 15 + -6r

Combine like terms: 7r + 2r = 9r
9r = 15 + -6r

Solving
9r = 15 + -6r

Solving for variable 'r'.

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

Add '6r' to each side of the equation.
9r + 6r = 15 + -6r + 6r

Combine like terms: 9r + 6r = 15r
15r = 15 + -6r + 6r

Combine like terms: -6r + 6r = 0
15r = 15 + 0
15r = 15

Divide each side by '15'.
r = 1

Simplifying
r = 1

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