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  • York has $72.Sally has $12.in order to let Sally have 3 times the amount of York,how much should York give Sally?

    York has $72.Sally has $12.in order to let Sally have 3 times the amount of York,how much should York give Sally?
    英語人氣:194 ℃時(shí)間:2020-02-05 14:55:11
    優(yōu)質(zhì)解答
    紐約有72美元.莎莉12美元,讓莎莉有3倍量的紐約,紐約給多少莎莉?
    設(shè)紐約給x,則有
    12+x=3(72-x)
    12+x=216-3x
    4x=204
    x=51
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