AdrianOGask
a fost răspuns

1. 2x + 4 = -10 2.10=7x-4 3.6=4x-2
4.-7=4x+1 5.11=2x +3 6.5x-6=14 7.5x-1=9
8.-4x+1 = -15

Răspuns :

Marineolaask

Răspuns:

1. 2x+4=-10|-4

2x=-14|:2

X=-7

2. 10=7x-4

7x-4=10|+4

7x=14|:7

X=2

3. 6=4x-2

4x-2=6|+2

4x=8|:4

X=2

4. - 7=4x+1

4x+1=-7|-1

4x=-8|:4

X=-2

5. 11=2x+3

2x+3=11|-3

2x=8|:2

X=4

6. 5x-6=14|+6

5x=20|:5

X=4

7. 5x-1=9|+1

5x=10|:5

X=2

8. - 4x+1=-15|-1

- 4x=-16|x(-1)

4x=-16|:4

X=-4