Mathematics: Sylvain spent a total of 18 hours on English and math homework over the last 3 weeks. He spent twice as much time on English than on math. Let x represent the number of hours spent on English and y represent the number of hours spent on math. x + y = 18. x = 2 y. What is the solution of the system of equations? (12, 6) (6, 12) (9, 9) (15, 3)

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Sylvain spent a total of 18 hours on English and

jhanley4637

07.07.2021

12, 6

Step-by-step explanation:

we have two equations

x + y = 18 . (i)

and x = 2y .(ii)

substituting the value of x from eq. (ii) in eq. (i)

2y + y = 18

3y = 18

y = 6

putting this value if y in equation (ii) to get x

x = 2 × 6

= 12

therefore,

(12, 6) is the solution to the system of equations

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