" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
anak = b
a - 2 = 6 (b- 2).... a-2 =6b-12.... a - 6b = -10
a + 18 = 2 (b+18)..a + 18=2b+36... a - 2b = 18 (-)
-4b = -28
b = 7
a= -10 + 6b=-10 + 42=32
y-2 = 6(x-2) ⇔ y-2 = 6x -12 ⇔ y-6x = -12+2 ⇔ y-6x = -10
y+18 = 2(x+18) ⇔ y+18 =2x+36 ⇔ y-2x = 36-18 ⇔ y-2x = 18
y - 6x = -10
y - 2x = 18 -
-4x = -28
x = -28/-4
x = 7
y - 2x = 18
y - 2.7 = 18
y - 14 = 18
y = 18 + 14
y = 32
jadi umur ayah sekarang 32 tahun dan anaknya berumur 7 tahun.