Question

1. 7x - 4=4x + 20

2. 1/2 (x+5) = 1/3(6x-3)
Tolong jawab ya

Answer 1

7x-4=4×+20
3×=20+4
×=8

semua dikali 6. jadinya
3(×+5)=2(6×-3)
3×+15=12-6
21=9×
×=21/9

Answer 2

1) 7x - 4 = 4x + 20
    7x - 4x = 20 + 4
     3x = 24
       x = 24/3
       x = 8
2) 1/2(x + 5) = 1/3(6x - 3)
     1/2 (x + 5) = 2x - 1
       x + 5 = (2x - 1) · 2
       x + 5 = 4x - 2
       x - 4x = -2 -5
       -3x = -7
         x = -7/-3
         x = 7/3