Tentukan nilai x yang memenuhi persamaan 2(x+3) + 7(x-3)=5(x-7)

By Admin ReiPosted on October 29, 2022

Tentukan nilai x yang memenuhi persamaan 2(x+3) + 7(x-3)=5(x-7)

Jawaban:

x= -5

Penjelasan:

2(x+3) + 7(x-3) = 5(x-7)

2x+6 + 7x-21 = 5x-35

9x-15 = 5x-35

9x-5x = -35+15

4x = -20

x = -20/4

x = -5

Jawaban:

$2x + 6 + 7x - 21 = 5x - 35$

$2x + 7x + 6 - 21 = 5x - 35$

$9x - 15 = 5x - 35$

$9x - 5x = - 35 + 15$

$4x = - 20$

$x = - 5$