Question

Urgent !! Va rog !

Rezolvati ecuatiile stiind ca x este nr. natural :

42:(2x-3)=6

17:(4x-3)=17

2x+7x=2x+14

x+4x=x+28

5x=3x+34

8x=2x+54

9x=x32

6x+24=10x

9x+105=14x

4x-10=2x

Answer 1

42:(2x-3)=6
42=6(2x-3)
12x-18=42
12x=42+18
x=60/12
x=5

17:(4x-3)=17                    :17
4x-3=1
4x=1+3
x=4/4
x=1


2x+7x=2x+14
9x-2x=14
7x=14
x=14/7
x=2

x+4x=x+28
5x-x=28
4x=28
x=28/4
x=7

5x=3x+34
5x-3x=34
2x=34
x=34/2
x=17

8x=2x+54
8x-2x=54
6x=54
x=54/6
x=9

6x+24=10x
6x-10x=-24
-4x=-24   (-1)
x=24/4
x=6

9x+105=14x
9x-14x=-105
-5x=-105    (-1)
x=105/5
x=21

4x-10=2x
4x-2x=10
2x=10
x=10/2
x=5