Question

5×+10y=50 ×-y=7 método de sustitución​

Answer 1

• 5×+10y=50
• ×-y=7

×-y=7

×=7+y

ENTONCES Remplazamos:

5(7+y)+10y=50

35+5y+10y=50

15y=50-35

15y=15

$y = 1$

Hallamos x

x=7+y

x=7+1

$x = 8$