math

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this is how i worked it out and i keep gettin a decimal:
4x+(9-3x)=8x-1
4x+9-3x=8x-1
3x
1x-9=8x-1
-1x
-9=7x-1
(-9)
7x=8
1.1428571

  • math -

    4x + (9 - 3x)= 8x - 1
    1x + 9 = 8x - 1
    -7x = -10
    x = 10/7
    x = 1.43

  • math -

    21=

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