Question

Tentukan HP dari: 3x-y=5,x+z=5,x+y=z

Answer 1

3x - y = 5
x + z = 5
x + y = z
-------------(+)
5x = 10
x = 2
.
x+z = 5
z = 5- x
z = 5 - 2
z = 3

x+ y = z
y= z - x
y = 3 - 2
y = 1