Question

b) x – y = 1 x + y = 9 a) (m8,10) b) (5,4) c) (18, 20) d) (NDA me ajudemmmm por favor

Answer 1

b) S = { 5,4 }

x – y = 1

x + y = 9

Achando o X

x+x-y+y = 1+9

2x = 10

x = 10/2

x = 5

Achando o Y

x+y = 9

5+y = 9

y = 9-5

y = 4

Boa tarde ❤️

04/10/21