If jessica is 7 years old and annie is twenty year older, how old is annie?

20 + 7 = 27

Twenty plus 7 is 27 therefore Annie would be 27 years old

"27"

Take "20" Add it with "7" it adds up to "27". So annie is "27"

20+7=27

Both are correct.

Step-by-step explanation:

They are both correct, since the first step to solving the equation would be to combine like terms. By subtracting either 3x or 7x from both sides of the equation, they are combining the like terms.

Hope this helps!