Question

А) 9-4y=-5y б)12a-1=-a+25 в)8+3b=-7-2b г)4n= - 2 + 6n + 7 д)2-c=5c+1 е) 3d-10=3d-6 ПОМОГИТЕ ПЛИЗ))))

Answer 1

А) 9 = - 5y + 4y
   y = - 9
б) 12а + а = 25 + 1
    13а = 26
       а = 2
в) 3b + 2b = -7 - 8
    5b = - 15
    b = - 3
г) 4n - 6n = 5
   - 2n = 5
      n = - 2,5
д) 2-1 = 5с + с
    1 = 6с
    с = 1/6
е) наверное неправильно условие записано

   

Answer 2

Task A: Solve the equation 9-4y=-5y

To solve the equation 9-4y=-5y, we can start by simplifying both sides of the equation:

9 - 4y = -5y

Next, we can combine like terms by adding 5y to both sides of the equation:

9 - 4y + 5y = -5y + 5y

Simplifying further, we get:

9 + y = 0

To isolate y, we can subtract 9 from both sides of the equation:

9 + y - 9 = 0 - 9

Simplifying, we have:

y = -9

Therefore, the solution to the equation 9-4y=-5y is y = -9.

Task B: Solve the equation 12a-1=-a+25

To solve the equation 12a-1=-a+25, we can start by simplifying both sides of the equation:

12a - 1 = -a + 25

Next, we can combine like terms by adding a to both sides of the equation:

12a + a - 1 = -a + a + 25

Simplifying further, we get:

13a - 1 = 25

To isolate a, we can add 1 to both sides of the equation:

13a - 1 + 1 = 25 + 1

Simplifying, we have:

13a = 26

Finally, we can solve for a by dividing both sides of the equation by 13:

a = 26/13

Simplifying further, we get:

a = 2

Therefore, the solution to the equation 12a-1=-a+25 is a = 2.

Task C: Solve the equation 8+3b=-7-2b

To solve the equation 8+3b=-7-2b, we can start by simplifying both sides of the equation:

8 + 3b = -7 - 2b

Next, we can combine like terms by adding 2b to both sides of the equation:

8 + 3b + 2b = -7 - 2b + 2b

Simplifying further, we get:

8 + 5b = -7

To isolate b, we can subtract 8 from both sides of the equation:

8 + 5b - 8 = -7 - 8

Simplifying, we have:

5b = -15

Finally, we can solve for b by dividing both sides of the equation by 5:

b = -15/5

Simplifying further, we get:

b = -3

Therefore, the solution to the equation 8+3b=-7-2b is b = -3.

Task D: Solve the equation 4n=+-+2+++6n+++7

To solve the equation 4n=+-+2+++6n+++7, we can start by simplifying both sides of the equation:

4n = +- + 2 +++ 6n +++ 7

Next, we can combine like terms by adding and subtracting n terms:

4n - 6n = 2 + 7

Simplifying further, we get:

-2n = 9

To isolate n, we can divide both sides of the equation by -2:

-2n / -2 = 9 / -2

Simplifying, we have:

n = -9/2

Therefore, the solution to the equation 4n=+-+2+++6n+++7 is n = -9/2.

Task E: Solve the equation 2-c=5c+1++

To solve the equation 2-c=5c+1++, we can start by simplifying both sides of the equation:

2 - c = 5c + 1

Next, we can combine like terms by adding c to both sides of the equation:

2 - c + c = 5c + c + 1

Simplifying further, we get:

2 = 6c + 1

To isolate c, we can subtract 1 from both sides of the equation:

2 - 1 = 6c + 1 - 1

Simplifying, we have:

1 = 6c

Finally, we can solve for c by dividing both sides of the equation by 6:

c = 1/6

Therefore, the solution to the equation 2-c=5c+1++ is c = 1/6.

I hope this helps! Let me know if you have any further questions.