Sistem Persamaan Linear Satu Variabel Tentukanlah HP dari:

5) 3(2x-3)+6=0

6) 7 (x+2) = 5(x-1)

7) 1/3 x + 2/5 x = 10

8) (5x-2)/3 = (x-3/2​)

Jawab:

5) 3(2x-3)+6=0

6x - 9 + 6 = 0

6x - 3 = 0

6x = 3

x = 3/6 = 1/2

HP = {1/2}

6) 7 (x+2) = 5(x-1)

7x + 14 = 5x - 5

7x- 5x = -5 - 14

2x = - 19

x = -19/2

HP = {-19/2}

7) 1/3 x + 2/5 x = 10 --> kedua ruas dikali 15

5x + 6x = 150

11x = 150

x = 150/11

HP {150/11}

8) (5x-2)/3 = (x-3)/2​ --> kedua ruas dikali 6

2(5x-2) = 3(x-3)

10x - 4 = 3x - 9

10x - 3x = -9 + 4

7x = -5

x = -5/7

Answered by BBO