Question

A) x + 9 = 27; б) X- 7 = 14;в) 60 - C= 18;г) 2x + 1 =77;д) 4x - 3=29;e) 2+ 5x=32;ж) 3x-1=14;3) 6+ 12x= 18;и) 21 - 5x=6​

Answer 1

Ответ:

Пошаговое объяснение:

a) x + 9 = 27;

х=27-9

х=18

б) X- 7 = 14;

х=14+7

х=21

в) 60 - C= 18;

с=60-18

с=42

г) 2x + 1 =77;

2х=77-1

2х=76

х=76:2

х=38

д) 4x - 3=29;

4х=29+3

4х=32

х=32:4

х=8

e) 2+ 5x=32;

5х=32-2

5х=30

х=30:5

х=6

ж) 3x-1=14;

3х=14+1

3х=15

х=15:3

х=5

3) 6+ 12x= 18;

12х=18-6

12х=12

х=12:12

х=1

и) 21 - 5x=6​

5х=21-6

5х=15

х=15:5

х=3

Answer 2

To solve each equation for the variable "x," follow these steps:

A) x + 9 = 27: Step 1: Subtract 9 from both sides to isolate x. x = 27 - 9 x = 18

б) X - 7 = 14: Step 1: Add 7 to both sides to isolate x. x = 14 + 7 x = 21

в) 60 - C = 18: Step 1: Subtract 18 from both sides to isolate C. C = 60 - 18 C = 42

г) 2x + 1 = 77: Step 1: Subtract 1 from both sides to isolate 2x. 2x = 77 - 1 2x = 76

Step 2: Divide both sides by 2 to solve for x. x = 76 / 2 x = 38

д) 4x - 3 = 29: Step 1: Add 3 to both sides to isolate 4x. 4x = 29 + 3 4x = 32

Step 2: Divide both sides by 4 to solve for x. x = 32 / 4 x = 8

e) 2 + 5x = 32: Step 1: Subtract 2 from both sides to isolate 5x. 5x = 32 - 2 5x = 30

Step 2: Divide both sides by 5 to solve for x. x = 30 / 5 x = 6

ж) 3x - 1 = 14: Step 1: Add 1 to both sides to isolate 3x. 3x = 14 + 1 3x = 15

Step 2: Divide both sides by 3 to solve for x. x = 15 / 3 x = 5

3. 6 + 12x = 18: Step 1: Subtract 6 from both sides to isolate 12x. 12x = 18 - 6 12x = 12

Step 2: Divide both sides by 12 to solve for x. x = 12 / 12 x = 1

и) 21 - 5x = 6: Step 1: Subtract 21 from both sides to isolate -5x. -5x = 6 - 21 -5x = -15

Step 2: Divide both sides by -5 to solve for x. x = -15 / -5 x = 3

So, the solutions for each equation are: A) x = 18 б) x = 21 в) C = 42 г) x = 38 д) x = 8 e) x = 6 ж) x = 5

3. x = 1 и) x = 3