Question
Abi, Xylia and Anna have 378 buttons. Abi has 34 as many buttons as Xylia. Anna's buttons is 15 of the total number of Abi's and Xylia's buttons. How many buttons must Xylia give to Anna so that both Abi and Anna will have the same number of buttons?
4 m

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Abi, Xylia and Anna have 378 buttons. Abi has 34 as many buttons as Xylia. Anna's buttons is 15 of the total number of Abi's and Xylia's buttons. How many buttons must Xylia give to Anna so that both Abi and Anna will have the same number of buttons?