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3 March, 05:05

What is the answer 9=4a+13

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  1. 3 March, 07:45
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    a = - 1

    Step-by-step explanation:

    first subtract 13 from both sides

    9-13 = - 4. - 4 = 4a.

    now divide both sides by 4 to isolate the variable

    -4/4=a = - 1
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