bob231280
15.07.2019 •
Mathematics
This looks pretty i just am not sure how to figure it is the value of the x variable in the solution to the following system of equations? 4x + 2y =12 x − y = 3 −1 5 −2 2
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Ответ:
Then substitude it in first equation:
4(3+y)+2y=12,
4·3+4y+2y=12,
12+6y=12,
6y=12-12,
6y=0,
y=0 and x=3+0=3
(3,0)
Ответ: