Resposta :
2x=5y
7x-6y=46
x=5/2y
7.5/2y-6y=46
x=5/2y
35y-12y=92
x=5/2y
23y=92
x=5/2y
y=92/23
x=5/2y
y=4
x=4.5/2
y=4
x=20/2
y=4
x=10
Y=4
7x-6y=46
x=5/2y
7.5/2y-6y=46
x=5/2y
35y-12y=92
x=5/2y
23y=92
x=5/2y
y=92/23
x=5/2y
y=4
x=4.5/2
y=4
x=20/2
y=4
x=10
Y=4