John's age is seventeen years less than twice Isabella's age. Together, the sum of their ages is 40. How old is John?
I did x+(2x-17)=40 I got x=19 but it keeps saying i got it wrong can you please help.

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  1. Hard to tell, since you did not define your x

    I will let Isabella's age be x years
    then John is 2x - 17

    x + 2x-17 = 40
    3x = 57
    x = 19

    So Isabella is 19, but it asked for John's age.
    John is 2(19) - 17 = 21

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