Question
Mr Song's convertible was left with 14 fuel. He added 6 ℓ of fuel to his convertible, it became 58 full. How much more fuel was needed to fill up Mr Song's convertible?
4 m

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Mr Song's convertible was left with 14 fuel. He added 6 ℓ of fuel to his convertible, it became 58 full. How much more fuel was needed to fill up Mr Song's convertible?