Question

X-3y=15
2x+3y=60 me ajudem

Answer 1

Olá,

x-3y=15
2x+3y=60

x=15+3y

2(15+3y)+3y=60
30+6y+3y=60
9y=60-30
9y=30
y=30/9=10/3

2x+3(10/3)=60
2x+10=60
2x=60-10
2x=50
x=50/2
x=25

S={25;10/3}

Espero ter te ajudado!