Question

Tentukan pertidak samaan berikut ?
a 15x-8>40-13x
b 3p+3<21

Answer 1

A) 15x - 8 > 40- 13 x,= 15x + 13 x > 40 + 8 = 28x > 48 = x > 1 20/28 = 1 5/7 b) 3p +3 < 21 -6p = 3p + 6p < 21-3 = 9p < 18 = p > 18

Answer 2

A. 15x-8>40-13x = 15x+13x>40+8 = 28x>48 = x>48/28 = x> 1 20/28 = x> 1 5/7 B. 3p+3<21=6p = 3p+3<21-6p = 3p+6p<21-3 = 9p<18 = p<18/9 = p<2