Question

URGENT

what should be the first step in adding these equations to eliminate y?


3x + 4y = 8

+ 6x - 2y = 9

Answer 1

Multiply the bottom equation by 2.

Explanation:

A.P.E.X 2021

Answer 2

Multiply the bottom equation by 2.

Explanation:

The given equation are:

3x + 4y = 8

and 6x – 2y = 9

(1)

(2)

Now, in order to add these equations and eliminate y, we should multiply the bottom equation by 2, thus we have

3x + 4y = 8

12x – 4y= 18

(3)

(4)

Now, adding the above equations, we

have

15x 26

= 26 15

Now, substituting the value of x in equation (3), we have

3(25) + 4y=8

y=1