Respostas

  • Usuário do Brainly
2014-07-28T18:42:15-03:00
P/y=7

4x-2y=6
4x-2(7)=6
4x-14=6
4x=14+6
4x=20
x=20:4
x=5

p/x=1/2

4(1/2)-2y=6
2-2y=6
-2y=6-2
-2y=4
2y=-4
y=-4/2
y=-2
1 5 1