4r+5r-6r=15+6

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Solution for 4r+5r-6r=15+6 equation: 


Simplifying
4r + 5r + -6r = 15 + 6

Combine like terms: 4r + 5r = 9r
9r + -6r = 15 + 6

Combine like terms: 9r + -6r = 3r
3r = 15 + 6

Combine like terms: 15 + 6 = 21
3r = 21

Solving
3r = 21

Solving for variable 'r'.

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

Divide each side by '3'.
r = 7

Simplifying
r = 7

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