Respuesta :

texaschic101
x = ur hats, y = ur brothers hats
x + y = 50
x = 4y

4y + y = 50
5y = 50
y = 50/5
y = 10 <== ur brother has 10 hats

x + y = 50
x + 10 = 50
x = 50 - 10
x = 40 <== u have 40 hats
apologiabiology
x=your number of hats
y=number of hats bro has

x is 4 times y
x=4y
together (x+y) it is 50

x+y=50
since x=4y, replace x with fy
4y+y=50
5y=50
divide both sides by 5
y=10
x=4y
x=4(10)
x=40

you have 40 and bro has 10