The weight of the fish

EasyBrainteasers~3m

You catch a fish and weigh its parts. The tail weighs $9$ ounces. The head weighs as much as the tail plus half the body. The body weighs as much as the head and tail combined. What is the total weight of the fish, in ounces?

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Write one equation per sentence: $T=9$ , $H=T+B/2$ , $B=H+T$ .
Substitute $H$ into the body equation to solve for $B$ first.

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The weight of the fish

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