Question

3/4y - 1/5y = 2
tentukan nilai "y"
1/x - 1/2 = 1/3
tentukan nilai "x"
p/2 = p/7 - 10
tentukan nilai p

Answer 1

3/4y-1/5y = 2
15/20y-4/20y = 2
11/20y = 2
y = 2/11/20
y = 2×20/11
y = 10/11

p/2 = p/7-10
10 = p/7-p/2
10 = 2p/14-7p/14
10 = -5p/14
p=-28