Hộ tớ gấp thanks ^^ Bài 1: Tìm x: a) $2.x-3=4$ b) $x-2=-1$ c) $1-2.x=0$ d) $3-x=-4$ e) $x+3=-2$ f) $-x+3=4$

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1. `a,2.x-3=4`

   `->2.x=7`

   `->x=7/2`

   Vậy `x=7/2`

   `b,x-2=-1`

   `->x=-1+2`

   `->x=1`

   Vậy `x=1`

   `c,1-2.x=0`

   `->2.x=1`

   `->x=1/2`

   Vậy `x=1/2`

   `d,3-x=-4`

   `->x=3+4`

   `->x=7`

   Vậy `x=7`

   `e,x+3=-2`

   `->x=-2-3`

   `->x=-5`

   Vậy `x=-5`

   `f,-x+3=4`

   `->-x=4-3`

   `->-x=1`

   `->x=-1`

   Vậy `x=-1`

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