yes
10 + 9 = 19
9 plus 10 = 19
19
10 + 9 = 19 19 - 6 = 13
-19 + 9 = -10n = -19n+9=-10-9 -9n=-19
19
x + 10 = 19 x = 19 - 10 x = 9
no 9 + 10 = 19 11 + 10 = 21 9 + 12 = 21
No, because 9+10 = 19
is 21
x equals 19
19+19+9 = 47
3m plus 19. Change it if I am wrong!