Question

Buna! Cum rezolv x+y=56 x :y=3 rest 4 x=? y=? Va rog! Multumesc!

Answer 1

x+y=56
x:y=3 rest 4
x=3y+4
3y+4+y=56
4y+4=56
4y=56-4
4y=52
y=52:4
y=13
x=13x3+4
x=39+4
x=43

Answer 2

x+y=56
x :y=3 rest 4 Aplicam teorema;D=IXC+R
x=yx3+4
Si inlocuim:
yx3+y+4=56
yx4=52(din 56-4)
y=52:4
y=13
x=56-13
x=43