Question

c) x-y=0 x+y=6 me ajudem prfvr

Answer 1

Boa noite, vamos utilizar o metodo da adição.

x-y=0
 x+y=6
________
2x = 6
x = 6/2
x = 3

achando y.

x - y = 0
3 - y =0
y = 3

Answer 2

$\mathtt{Sistema~pelo~me\´todo~da~adi\c{c}\~ao}} \\ \\ \mathtt{x - y = 0} \\ \mathtt{x + y = 6} \\ \_\_\_\_\_\_\_\_\_\_\_\_ \\ \mathtt{2x~~~~=6} \\ \mathtt{x = 6 \div 2 } \\ \mathtt{x = 3} \\ \\ \mathtt{x + y = 6} \\ \mathtt{3 + y = 6} \\ \mathtt{y = 6 - 3} \\ \mathtt{y = 3} \\ \\ \\ \mathtt{Resposta :} \\ \mathtt{x = 3} \\ \mathtt{y = 3}$