Question

Am nevoie urgent, dau coroana si punctaj maxim

Answer 1

Răspuns:

Ai răspuns atașat pe foaie.

Answer 2

Răspuns:

1) 2(x-4)=5(x+2)

2x-8=5x+10

2x-5x=10+8

-3x=18

x=-6

2) 3(2x -1)+4(2-2x)=0

6x-3+8-8x=0

-2x=3-8

x=-5/-2

3) 2(3x-4) -3( x-2)=0

6x-8-3x+6=0

3x=8-6

x=2/3

4) 3(x-5) =4(x-10)

3x -15=4x-40

3x-4x=-40+15

-x=-25

5) 6(2x + 1) - 3(3x-50)=x+2

12x+12-9x+150=x+2

12x-9x-x=2-12-150

2x= -160

x=-80

6) 4x-2(3x-1)=0

4x-6x+2=0

-2x=-2

x=1

7) 12-3(2x+3)=4

12-6x -6=4

-6x=4-6

-6x=-2

x=-2/-6

8) 5x-4-2(x+3)=-1+x

5x-4-2x-6=-1+x

5x-2x-x=-1+4+6

2x=9

x=9/2

9) 4(x-6) -3(2x+3)=0

4x-24-6x-9=0

-2x=24+9

-2x=33

x=33/-2

10) 5(4-x) -2( 3-2x)=1

20 - 5x-6+4x=1

-5x+4x=1-20+6

-x=-13

Explicație pas cu pas: