Ella brought some keychains and spent a total of $24. each keychain cost the same whole dollar amount . she brought between 7 and 11 keychins how many keychains did ella bye

She bought 8 key-chains because when you divide 24 by 8 you get 3, which would be 3.00 dollars exactly and 3 multiplied by 8 equals you 24. each key-chain cost the same amount of 3 dollars.

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation:

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