Răspuns:
1.
9x-16=3x-x+5 ; 9x-16=2x+5 ; 7x=21 =>x=3
2.
7x-10=6x+6-x ; 7x-10=5x+6 ; 2x=16 =>x=8
3.
10x+2=x+2 ; 9x=0 =>x=0
4.
5x+5=2x-10+6 ; 5x+5=2x-4 ; 3x=(-9) =>x=(-3)
5.
3x-6-2x+6-5=0 ; x-5=0 =>x=5
6.
3-2x+3-12x-4+20x=2-6x ; 6x+2=2-6x ; 12x=0 =>x=0
7.
(3x-1)/3 = 134/3 - 2x
3x-1=134-6x ; 9x=135 =>x=19
8.
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