Question

x+y=776
x=3y??? alguém m ajuda pfv

Answer 1

x + y = 776
x = 3y

3y + y = 776
4y = 776

y = 776/4

y = 194

Answer 2

x + y = 776
x = 3y
==========
x + y = 776
3y + y = 776
4y = 776
y = 776/4
y = 194

x = 3y
x = 3.194
x = 582


S={ 582, 194 }