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15 June, 07:02

5/4b+7=7/8b+19

What is the answer for b

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Answers (2)
  1. 15 June, 07:04
    0
    I think the answer for b is 3
  2. 15 June, 07:17
    0
    1. Cross multiply

    5 (8b+19) = 7 (4b+7)

    2. Expand

    40b+95=28b+49

    3. Subtract 28b from both sides

    40b+95-28b=49

    4. Simplify 49b+95-28b to 12b+95

    12b+95=49

    5. Subtract 95 from both sides

    12b=49-95

    6. Simplify 49-95 to - 46

    12b=-46

    7. Divide both sides by 12

    b=46/12

    8. Simplify 46/12 to 23/6

    b=-23/6

    Have a nice day
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