Question

Himpunan penyelesaian dari :

1/2 (x-4) < 4 + 4/5x adalah...

tolong beserta caranya ya.

Answer 1

1/2x-2<4 +4/5x
-6<4/5x-1/2x
-6<3/10x
-60<3x
-20<x

Answer 2

1/2(x - 4) < 4 + 4/5x
1/2x - 2 < 4 + 4/5x
10(1/2x - 2) < 10(4 + 4/5x)
5x - 20 < 40 + 8x
5x - 8x < 40 + 20
-3x > 60
x > 60/-3
x > -20

Hp= {-19, -18, -17,...,...,...}