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a fost răspuns

3x+2=-7
5x-4=-14
2x+35=15
7x+14=0
-2x+3=-10
-5x+5=5

Răspuns :

HawkEyed
3x+2=-7
3x=-7-2
3x=-9
x=-9:3
x= - 3 

5x-4=-14
5x=-14+4
5x=-10
x = -10:5
x=- 2

2x+35=15
2x = 15 -35
2x=-20
x =-20:2
x= - 10

7x+14=0
7x = -14
x= -14:7
x= - 2

-2x+3=-10
-2x = -10-3
-2x=-13
x= -13/-2
x= 6,5

-5x+5=5
-5x =5 -5
-5x=0
x=0
Stoicadenny
3x+2=-7
3x=-7-2
3x=-9
x=-3

5x-4=-14
5x=-14+4
5x=-10
x=-2

2x+35=15
2x=15-35
2x=-20
x=-10

7x+14=0
7x=0-14
7x=-14
x=2

-2x+3=-10
-2x=-10-3
-2x=-13 |-1
2x=13
x=6,5

-5x+5=5
-5x=5-5
-5x=0
x=0

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