Question

5x + 10 y = 50
X - y =7

Answer 1

Explicación paso a paso:

5x + 10y = 50 ( 1 ) comprobación:

x - y = 7 ( 10 ) 5(8) + 10(1) = 50

40 + 10 = 50

5x + 10y = 50 50 = 50

10x - 10y =70

estabien. resuelto. corona pe

15x = 120

x = 120/15

x= 8

5( 8 ) +10y = 50

40 + 10y = 50

10y = 50 - 40

10y = 10

y = 10/10

y = 1