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21 votes
7x + 2y = 17
2x - 2y = 1
=​

User Bcmoney
by
3.9k points

1 Answer

8 votes

Answer:


(2,(3)/(2)})

Explanation:

For finding the system of equations you can use one of two methods. There's the elimination method and also the substitution method. For this I think the best way we could go at solving this is by using the elimination method. Since we can eliminate the 2y. We can then solve for x and then we'll go from there.


\left \{ +{{7x+2y=17} \atop {2x-2y=1}} \right. \\\\9x=18\\x=2

Now that we know what x is we can substitute it for one of the equations and then we will be able to solve for y.


7x+2y=17\\7(2)+2y=17\\14+2y=17\\2y=3\\y=(3)/(2)

So now we have the x and the y and once we place them together we can get the solution of those two equations, and the solution is
(2,(3)/(2)}).

User Alexander Ershov
by
4.4k points