3r+7s=11

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Solution for 3r+7s=11 equation: 


Simplifying
3r + 7s = 11

Solving
3r + 7s = 11

Solving for variable 'r'.

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

Add '-7s' to each side of the equation.
3r + 7s + -7s = 11 + -7s

Combine like terms: 7s + -7s = 0
3r + 0 = 11 + -7s
3r = 11 + -7s

Divide each side by '3'.
r = 3.666666667 + -2.333333333s

Simplifying
r = 3.666666667 + -2.333333333s

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