Question

(9,9+х)+(-25,3)=-10,2+2(-5,5+х)

Answer 1

Объяснение:

(9,9+х)+(-25,3)= - 10,2+2(-5,5+х)

9,9+х-25,3= - 10,2-11+2х

Х-2х= - 10,2-11-9,9+25,3

-х= - 5,8

Х=5,8

Answer 2

To solve the equation (9,9+х)+(-25,3)=-10,2+2(-5,5+х), you can follow these steps:

1. Start by simplifying the expressions on both sides of the equation.

Left side:

(9.9 + x) + (-25.3) = 9.9 - 25.3 + x = -15.4 + x

Right side:

-10.2 + 2(-5.5 + x) = -10.2 - 11 + 2x = -21.2 + 2x

Now, your equation becomes:

-15.4 + x = -21.2 + 2x

2. Move all the terms involving 'x' to one side of the equation and the constants to the other side. You can do this by subtracting 'x' from both sides and adding 15.4 to both sides:

-15.4 + x - x = -21.2 + 2x - x

Simplify:

-15.4 = -21.2 + x

3. Now, isolate 'x' on one side of the equation. You can do this by adding 21.2 to both sides:

-15.4 + 21.2 = -21.2 + x + 21.2

Simplify:

5.8 = x

So, the solution to the equation is x = 5.8.