MATH please help

Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each subject.
Please help and show work it would be great thanks i really need help thanks

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  1. Number failed math is M
    number failed ELA is E

    42-E-M+4=7 Think on that first.

  2. thanks

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