Respuesta :

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3r = 10 + 5s

Put the value of r = 10 to the equation and solve it for s:

3(10) = 10 + 5s

30 = 10 + 5s      subtract 10 from both sides

20 = 5s      divide both sides by 5

4 = s → s = 4

Answer: for r = 10, s = 4.