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23 May, 05:42

3a+11=7a-13 with shown work

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  1. 23 May, 05:52
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    3a+11=7a-13

    move 7a to the other side

    sign changes from + 7a to - 7a

    3a-7a+11 = 7a-7a-13 (combine like terms)

    3a-7a+11 = - 13

    -4a+11 = - 13

    move 11 to the other side

    sign changes from + 11 to - 11

    -4a+11-11 = - 13-11

    -4a = - 13-11

    -4a = - 24

    divide both sides by - 4 to get a by itself

    -4a/-4 = - 24/-4

    Answer: a = 6
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