" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
umur budi : y
(x - 7) = 6(y - 7)
x - 7 = 6y - 42
x = 6y - 35...(i)
2(x + 4) = 5(y + 4) + 9
2x + 8 = 5y + 20 + 9
2x = 5y + 21...(ii)
subs (i) ke (ii)
2(6y - 35) = 5y + 21
12y - 70 = 5y + 21
12y - 5y = 21 + 70
7y = 91
y = 13
x = 6y - 35
x = 6.13 - 35
x = 78 - 35 = 43 thun