Question

a) 5x + y = 4
x - y = 2​

Answer 1

Resposta:

Explicação passo-a-passo:

A) 5x + y = 4

x - y = 2​ (+)

----------

6x = 6

X = 1

x - y = 2

1 - y = 2

1 - 2 = y

- 1 = y

y = - 1

Answer 2

olá !!!

$a)\\5x + y = 4\\x - y = 2\\\\5x=4\\x=2\\soma\\6x=6\\x=1\\\\a)\\5x + y = 4\\5+y=4\\y=4-5\\y=-1\\\\a)\\x - y = 2​\\1-y=2\\-y=2-1\\-y=1\\y=-1$

espero ter ajudado

att: jovem lendário