Question

1)9x-16=3x-(x-5)
2)5x-10+2x=6(x+1)-x
3)2(5x+1)=x+2
4)5(x+1)=2(x-5)+6
5)3(x-2)-2(x-3)-5=0
6)(3-2x)+3(1-4x)-4(1-5x)=2(1-3x)
7)3x-1 supra 3 = 44 2 supra 3 -2 x
8)2-x3=1 supra 5 -6x

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Answer 1

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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