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30 January, 04:48

Use a graph to solve the equation

7x+3=9x-13

x=

+3
Answers (1)
  1. 30 January, 08:15
    0
    Subtract 7x from both sides

    3=9x-13-7x

    simplify 9x-13-7x to 2x-13

    3=2x-13

    Add 13 to both sides

    3+13=2x

    simplify 3+13 to 16

    16=2x

    simplify both sides by 2

    16/2=x

    simplify16/2 to 8

    x=8
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