Question

if 4x+3y+4=0 and 6x+5y+7=0 then 2x+y=
​

Answer 1

Step-by-step explanation:

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here is your answer

Answer 2

Answer:

-1

Step-by-step explanation:

4x+3y=-4

6x+5y=-7

6[4x+3y]=-4(6)

24x+18y=-24............(1)

4[6x+5y]=-7(4)

24x+20y=-28....................(2)

(1)-(2)

-2y=4

y=-2

Sub in (1)

24x+18(-2)=-24

24x-36=-24

24x=12

x=1/2

2x+y=2(1/2)+(-2) = 1-2 = -1

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