no 6 7 8 9 10 tolong aku

6.a.1,2,3,4,5,6,7,8,9
b.6
c.2,4,5,6,7,8
7.-
8.6x-5=2x+11
6x-2x=11+5
4x=16
4x:4=16:4
x=4
semoga membantu ya

6. a. S = {1,2,3,4,5,6,7,8,9}
P = {2,4,6}
Q = {5,6,7,8}
b. P n Q = {6}
c. P U Q = {2,4,5,6,7,8}

8. 6x - 5 = 2x + 11
<=> 6x - 2x = 5 + 11
<=> 4x = 16
<=> x = 16/4
<=> x = 4

9. x - 8 <_ -1
<=> x <_ 8 - 1
<=> x <_ 7

10. 105.000 : 3 x 14 = 35.000 x 14 = 490.000

No. 7 gk tau, no. 10 ngasal:") tapi ak yakin bener kok