Question

some by
elimination
2x+y=7
3x- 2y =0​

Answer 1

Answer:

y=5,0=1

Step-by-step explanation:

as we have the value of x=2 and and we have to find the value of y for this:7-2=5 so we have the value of y=5

same as 1 ques:

3-2=1

Answer 2

Step-by-step explanation:

2x + y =7 eq 1

3x - 2y =0 eq 2

multiply eq 1 by 3 and eq 2 by 2, we get

6x + 3y =21 ep 3

6x - 4y =0. ep 4

Now, substracting eq 3 and eq 4

6x + 3y - 6x + 4y = 21 - 0

3y + 4y = 21

y = 21/7

y = 3

And, using y =3 in eq 1, we get

2x + 3 = 7

2x = 7-3

x = 4/2

x = 2

Therefore, x = 2 and y = 3