Jawaban:

SPTLSV

(sistem pertidaksamaan linear satu variabel)

...

1). penyelesaian soal :

3x - 5 ≤ 2x + 7

3x - 2x ≤ 7 + 5

x ≤ 12

HP = {( x| x ≤ 12 , x € Bil. Asli )}

HP = {( ...10, 11, 12 )}

...

2). penyelesaian soal :

2x + 3 < 27 + 4x

2x - 4x < 27 - 3

-2x < 24

x > -24/2

x > -12

HP = {( x| x > -12 , x € Bil. Bulat )}

HP = {( -11 , -10 , -9, .... )}

...

3). penyelesaian soal :

⅓ (2x + 3) ≤ 7

(2x + 3) ≤ 21

2x ≤ 21 - 3

2x ≤ 18

x ≤ ¹⁸/2

x ≤ 9

HP = {( x| x ≤ 9 , x € R )}

HP = {( ... 7, 8 , 9 )}

...

4). penyelesaian soal :

3(4 - 2x) < 3x - 6

12 - 6x < 3x - 6

-6x - 3x < -6 - 12

-9x < -18

x > ¹⁸/9

x > 2

HP = {( x| x > 2 , x € R )}

HP = {( 3 , 4 , 5 ,.... )}