Bai 1 a)2x-1=3x+5 b)2(x-3)+1=3(1-x)+2 HELP ME

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1. a. 2x-1=3x+5

   ⇔2x-3x=5+1

   ⇔-x=6

   ⇔x=-6

   b. 2(x-3)+1=3(1-x)+2

   ⇔2x-6+1=3-3x+2

   ⇔2x+3x=2+3+6-1

   ⇔5x=10

   ⇔x=2

   Trả lời

2. a)2x-1=3x+5

   ⇔ 2x -3x = 5 +1

   ⇔ -x = 6

   ⇔ x = -6

     Vậy x= -6

   b)2(x-3)+1=3(1-x)+2

   ⇔ 2x -6 +1 = 3 -3x +2

   ⇔ 2x – 5 = 5 -3x

   ⇔ 2x +3x = 5 +5

   ⇔ 5x = 10

   ⇔ x = 2

     Vậy x= 2

   Trả lời