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MATH

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i am thinking of a number. if you multiply it by 7, then add 15, and finally subtract 3^2 you get 48. write and solve an equation that describes the number (x) that i am thinking of.


how do i find it?
what is x?

  • MATH - ,

    Let x be the number.

    You multiply that number by 7

    SO FAR WE HAVE: 7x

    You add 15 to that number

    SO FAR WE HAVE: 7x+15

    You subtract 3^2 (which is 9) from that number

    SO FAR WE HAVE: 7x+15-9

    When you do all of that to the number, you get 48

    THE FINAL EQUATION IS: 7x+15-9=48

    TO SOLVE:
    7x+6=48
    7x=42
    x=6

  • MATH - ,

    kk thank you

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