Question

7x-4y=-8,7x+6y=9 by elimination​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

7x-4y+8=7x+6y-9

7x-7x-4y-6y+8+9=0

-10y+17=0

-10y=-17

y=-17/-10

y=17/10

Now put the value of y,

7x-4y=-8

7x-4(17/10)=-8

7x-34/5=-8

7x=-8+34/5

7x=(-40+34)/5

7x=-6/5

x=-6/5(7)

x=-6/35