Question
Three containers contain an average of 46 ℓ of softener. The 1st container contains 52 ℓ of softener and the 2nd container contains 9 ℓ more softener than the 1st container. How much softener does the 3rd container contain?
2 m

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Three containers contain an average of 46 ℓ of softener. The 1st container contains 52 ℓ of softener and the 2nd container contains 9 ℓ more softener than the 1st container. How much softener does the 3rd container contain?