Question

решите уравнение пжжжжж​

Answer 1

Ответ:

1) -7; 2)2; 3)0,5; 4)5

Пошаговое объяснение:

1) 6x - 3 = 5x +5 - 10

6x - 5x = 3 - 10

x = -7

2) 8x - 6 - 5x = 12x - 24

8x - 5x - 12x = 6 - 24

-9x = -18

x = -18/-9

x = 2

3) 2x + 13 = 4 - 8x + 14

2x +8x = 4 - 13 +14

10x = 5

x = 5/10

x = 0,5

4) 6x - 6 +14x +21 = 105 + 2x

6x + 14x -2x = 6 - 21 + 105

18x = 90

x = 90/18

x = 5

Answer 2

1) 3(2х-1)=5(х+1)-10

6х-3=5х+5-10

6х-5х= 5-10+3

1х= -2

х= -2:1

х= -2

2)2(4х-3)-5х=12х-24

8х-6-5х=12х-24

8х-5х-12х=-24+6

-9х=-18

х= -18: -9

х=2

3)2х+13=4(1-2х)+14

2х+13=4-8х+14

2х+8х=14+4-13

10х= 5

х= 5:10

х=0.5

4) 6(х-1)+7(2х+3)=105+2х

6х-6+14х+21=105+2х

6х+14х-2х= 105-21+6

18х=90

х=5