ysbchrishoncho
25.01.2020 •
Mathematics
Find x and y in
2x+2y=12
4x_4y=13
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Ответ:
Ответ:
x = 4.625, y = 1.375
Step-by-step explanation:
I am assuming that the second equation is 4x - 4y = 13.
2x+2y=12
4x-4y=13
Multiply first equation by -2:-
-4x - 4y = -24 Add this to the second equation to eliminate x:-
-8y = -11
y = 11/8 = 1.375
Plugging this into the first equation:-
2x + 2(1.375) = 12
2x = 9.25
x = 4.625
Ответ: