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8 March, 19:48

The question is 7a + 10 = 2a

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Answers (2)
  1. 8 March, 19:53
    0
    7a+10=2a

    Subtract 7a from both sides.

    10=-5a

    Divide 10 by - 5.

    -2=a or a=-2
  2. 8 March, 20:16
    0
    7a + 10 = 2a subtract 2a from both sides

    -2a - 2a

    5a + 10 = 0 subtract 10 from both sides

    -10 - 10

    5a = - 10 then divide both sides by 5

    /5 / 5

    a = - 2
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