Use the model to find the missing number in the pair of equivalent expressions. 15 + 9 = ?(5 + 3)

What number is missing from the expression?

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answer

step-by-step explanation:

a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 2 times the age of the child?

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this needs to be the answer format, or else your answer is incomplete.

if the number of years is x, then the equation is

in __ years

look at the picture i have filled out a table for it. hope this .