Question

2x+5y=10. 4x+10y=20. metodo de igualación​

Answer 1

2x=10-5y

4x=20-10y

X=10-5y

2

X=20-10y

4

(4) 10-5y=20-10y (2)

2 4

40-20y=40-20y

20y+20y=40+40

40y=80

40. 40

Y=2

Sust.

X=20+2

X=22

Comp.

22-2=20

20=20