adantrujillo1234
23.08.2019 •
Mathematics
Solve the system of equations
y=11-2x
4x-y=7
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Ответ:
x=3
y=5
Step-by-step explanation:
y=11-2x equation 1
4x-y=7 equaton 2
using equation 1 in equation 2 we have:
4x-(11-2x)=7
4x -11 +2x = 7
6x=7+11
6x= 18
x= 18/6
x=3
so we have
y=11-2(3)
y=11-6
y =5
Ответ: