Question

Mencari penyelesaian persamaan linear satu variabel
1. 3/5 + - 8/10 = 1

2. 4 w + [2w+15} - 3 {w+3} = 0

3. 12 + 4 [2 r - 1] = 6 [r + 2]
tolong jawab

Answer 1

Nomor 1 apa yang dicari?
kalo nomor 2 w= -1
kalo nomor 3 r= -3

Answer 2

4w + (2w+15) - 3(w+3) =0
4w+2w+15-3w-9=0
6w-3w+6=0
3w = -6
w = -2

12 + 4 ( 2r - 1 ) = 6 ( r+2)
12 + 8r - 4 = 6r + 12
8r - 4 = 6r
2r = 4
r = 2