w+6=3(w+6)
w=-6
9. 4(x-3)=4
x=4
10. 3(3x+4)-2=9x+10
x=1
The first two are right. 10 has no solution.
w+6=3(w+6)
w + 6 =3w + 18
-12 = 2w
w=-6
correct
9. 4(x-3)=4
x-3 = 1
x = 4
correct
10. 3(3x+4)-2=9x+10
9x + 12-2 = 9x + 10
9x + 10 = 9x + 10
0 = 0
x is all real number