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Solve using the addition and mulitplication method principles. 4+9x<13. Is this right? 4-4 +9x<13-4
9x/9> 9/9

  • Algebra. -

    No, you should not have changed the direction of the <, since you divided by a positive number.

  • Algebra. -

    almost, the < sign only changes to a > sign when both sides are multiplied by a minus.
    so the answer is x<1

    Hope that helps

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