Question

ZA BRAK ODP ZGŁASZAM
-2x+3 = 2 x –9



4 x- 1 =- x +24



- x + 8 = -3 x –10



-4x-1 = 6x+4



7x+3=10x+21



-2x +1=3x -3

Answer 1

-2x+3 = 2x –9

-2x-2x=-9-3

-4x=-12/:(-4)

x=3

4x- 1 =- x +24

4x+x=24+1

5x=25/:5

x=5

- x + 8 = -3 x –10

-x+3x=-10-8

2x=-18/:2

x=-9

-4x-1 = 6x+4

-4x-6x=4+1

-10x=5/:(-10)

x=-½

7x+3=10x+21

7x-10x=21-3

-3x=18/:(-3)

x=-6

-2x +1=3x -3

-2x-3x=-3-1

-5x=-4/:(-5)

x=4/5

Answer 2

Odpowiedź:

-2x+3=2x-9

-4x=-12/-4

x=3

4x-1=-x+24

5x=25/5

x=5

-x+8=-3x-10

2x=-18/2

x=-9

-4x-1=6x+4

-10x=5/-10

x=- 0,5

7x+3=19×+21

7×-19×=21-3

-12×=18/-12

×=-1 i 1/2

-2×+1=3×-3

-2×-3×=-3-1

-5×=-4/-5

×=4/5