Jika x : y : z = 2 : 1 : 3 dan x + y - 2z = -6 nilai x - y + z = ....
isdhar
X:y:z =2:1:3=2a:a:3a Maka x = 2a, y=a, z=3a x+y-2z =-6 2a + a-2(3a) =-6 2a+a-6a =-6 -3a = -6 a = 2 x=2a=4, y=a=2, z=3a=6 x-y+z= 4-2+6=8
0 votes
Thanks 1
More Questions From This User See All