Question 1167483
x of the S9 jelly fruits
15-x of the S12 chocolate buttons


{{{9x+12(15-x)=11.2*15}}}

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{{{9x-12x+(12)(15)=(11.2)(15)}}}

{{{12x-9x-(12)(15)=-(11.2)(15)}}}

{{{(12-9)x=(12)(15)-(11.2)(15)}}}

{{{highlight(x=15((12-11.2)/(12-9)))}}}

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