Question

solve 3x-4y=7 : 5x+2y=3
solve by equating coeffcients of variable ​

Answer 1

Step-by-step explanation:

Given that;

3x-4y =7

5x+2y =3

Now,

3x - 4y= 7 → 3x = 7 + 4y

So, X= 7/3 + 4y/3

Replacing the obtained value into the second equation;

5x + 2y =3 → 5(7/3 +4y/3) + 2y =3

So, We have;

5(7+4y) + 2y = 3(3)

35 + 20y + 2y = 9

22y = 9-35

y= (-26)/22

y= -13/11

So, X= 7/3 + 4y/3 → X= 7/3 + 4(-13)/11(3)

X= 7/3 -52/33 → (77-52)/33

So, X= 25/33

Hence the values of X and Y are 22/33 and -13/11 respectively...

Hopefully I was able to help you...

Have a great day ahead :)