Question

(2+x)×3.1=-12.4 (1.2+x)×(-5)=4 Пожалуйста помогите!!!

Answer 1

1) 6,2+3,1х= -12.4
3,1х= -18,6
х= -6
2) -6-5х=4
-5х=10
х= -2

Answer 2

To solve the first equation, we can use the following steps:

1. Distribute the 3.1 to the terms inside the parentheses:

   (2 + x) * 3.1 = 6.2 + 3.1x

2. Set the result equal to -12.4:

   6.2 + 3.1x = -12.4

3. Subtract 6.2 from both sides:

   3.1x = -18.6

4. Divide both sides by 3.1:

   x = -6

Therefore, the solution for the first equation is x = -6.

To solve the second equation, we can use the following steps:

1. Distribute the -5 to the terms inside the parentheses and simplify:

   -6 - 5x = 4

2. Subtract -6 from both sides:

   -5x = 10

3. Divide both sides by -5:

   x = -2

Therefore, the solution for the second equation is x = -2.

Thus, the solutions for the given equations are x = -6 and x = -2.