Question

Va rog dau coronita

Answer 1

Răspuns:

Explicație pas cu pas:

a)2x-x=-3-5

x=-8

b)5x-2x=6+7

3x=13

x=13/3

c)8x+2x+x=-11+20

11x=-31

x=-31/11

d)4x-6x=-1-3

-2x=-4

2x=4

x=4 impartit la 2

x=2

e)2x-2+1=x+8

2x-x=2-1+8

x=9

f)5x-x+1=9-4x

5x-x+4x=-1+9

8x=8

x=8 impartit la 8

x=1

Answer 2

a. 2x+3=x-5

2x-x= -5-3

x= -8

b. 5x-6=7+2x

5x-2x=7+6

3x=13

x=13/3

c. 8x+2x+11=20-x

10x+11=20-x

10x+x=20-11

11x=9

x=9/11

d. 4x+1=6x-3

4x-6x= -3-1

-2x= -4

x= -4:(-2)

x=2

e. 2(x-1)+1=x+8

2x-2+1=x+8

2x-1=x+8

2x-x=8+1

x=9

f. 5x-(x-1)=9-4x

5x-x+1=9-4x

4x+1=9-4x

4x+4x=9-1

8x=8

x=8:8

x=1