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lin550
15.04.2020 •
Mathematics
James solve the system of equations for the x value first. What is the correct x value in the solution (x,y)?
x+y=14
2x-2y=4
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Ответ:
The solution is x=8 and y = 6
Step-by-step explanation:
Given,
x+y = 14 (1)
2x-2y = 4 (2)
To find the solution of the given equation
Dividing both sides of (2) by 2 we get,
x-y = 2 (3)
Now we will solve (1) and (3)
Adding (1) and (3) we get,
(x+y) + (x-y) = 14+2
or, 2x = 16
or, x = 8
Again, putting the value of x=8 in (1) we get,
y = 14-x
= 14-8 = 6
Hence,
The solution is x=8 and y = 6
Ответ: