Respuesta :

AmberlinaC
1) 11x = 33, x = 3

**2) x/3 = 3, x = 9** has different solution

3) x - 2 = 1, x = 3

4) x + 9 = 12, x = 3
X/3, because 11x=33, if you divide by 11 you get x=3.
x-2=1, if u add 2 to the 1, you get x=3
x+9=12, if u subtract 9 you get x=3.
But with x/3=3 if you multiply 3 to cancel out the 1/3, u get x=9.

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