Respuesta :

r3t40
Hi,


Here are the equations:

[tex]12 - 7 = 5 \\ 5 \times 2 = 10[/tex]

He started with 10 comic books.

Hope this helps.
r3t40
pranjalishet

we can write the equation as

x/2 + 7 = 12

x/2 = 12 - 7

x/2 = 5

x = 5 X 2

x= 10


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