Question

qual o valor do x e do y da quaçao 2x+y=5. 8x-y=5​

Answer 1

y=5-2x. 8x-(5-2x)=5

y=5-2×1

y=5-2

y=3 8x-5+2x=5

8x+2x=5+5

10x=10

x=10/10

x=1