mabutler2013
07.01.2020 •
Mathematics
Which method would be more efiicient to solve the system y=1/2x and 2x+3y=28
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Ответ:
y=1/2x
subsitute that fr y
2x+3(1/2x)=28
2x+3/2x=28
times 2 both sides
4x+3x=56
7x=56
divide by 7 both sides
x=8
sub back
y=1/2x
y=1/2(8)
y=4
(x,y)
(8,4)
Ответ:
answer:
35
step-by-step explanation: