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26 July, 16:50

What is the answer20+8r=-4r+5r

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  1. 26 July, 17:16
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    The answer is r = - 20/7

    Step-by-step explanation:

    20 + 8r = - 4r + 5 r⇒ collect like term

    20 + 8r = r⇒separate different terms in different sides

    20 = r - 8r

    20 = - 7r⇒divide both sides by - 7

    r = 20/-7

    r = - 20/7
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