Question

Persamaan linear satu variabel:
1. 2k+3=11
2. -7z=3z-30
3. 4d+6=d
4. 6m-2=2m-8
5. 3m+4=22
Tolong Jawabannya:)

Answer 1

2k + 3 = 11
2k = 11 -2
2k = 9
k = 9/2

-7z = 3z - 30
-7z - 3z = - 30
-10 z = -30
z = -30 / -10
z = 3

4d + 6 = d
4d - d = -6
3d = -6
d = -6/3
d = -2

6m - 2 = 2m - 8
6m - 2m = -8 + 2
4m = -6
m = -6/4

3m + 4 = 22
3m = 22 - 4
3m = 18
m = 18/3
m = 6

Answer 2

1) 2k + 3 = 11 , 2k = 11 - 3 , 2k = 8 , k = 8/2 , k = 4 ..
2) -7z = 3z - 30 , 30 = 3z + 7z , = 30 = 10z , z = 30/10 , z = 3 ..
3) 4d + 6 = d , 4d - d = -6 , 3d = -6 , d = -6/3 = d = -2 ..
4) 6m - 2 = 2m - 8 , 6m - 2m = -8 + 2 , 4m = -6 , m = -6/4 ..
5) 3m + 4 = 22 , 3m = 22 - 4 , 3m = 18 , m = 18/3 , m = 6 ..