Question
Dylan had 6 more black marbles than pink marbles at first. His aunt then gave him 12 black marbles and his colleagues gave him 123 pink marbles for Christmas. Dylan realised that he now had four times as many pink marbles as black marbles. How many marbles did Dylan have in the end?
4 m

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Dylan had 6 more black marbles than pink marbles at first. His aunt then gave him 12 black marbles and his colleagues gave him 123 pink marbles for Christmas. Dylan realised that he now had four times as many pink marbles as black marbles. How many marbles did Dylan have in the end?