Question

5x+2y=7 and 4x-3y=24 by substitution method​

Answer 1

Answer:

{(x,y) =(3,-4)}

Step-by-step explanation:

2y=7-5x

y=7-5x/2...................(substitute)

put substitute in another equation

4x-3y=24

4x-3(7-5x/2)=24

(8x-21+15x)/2=24

8x-21+15x=24×2

8x-21+15x=48

8x+15x=48+21

23x=69

x=69/23

x=3

put value of x in substitute

y=7-5x/2

=7-5(3)/2

=7-15/2

=-8/2

= -4