Question

Уравнение 4-0,5(х+9)=-2,1

Answer 1

4-0,5(х+9)=-2,1
4-0,5х-4,5+2,1=0
-0,5х+1,6=0
-0,5х=-1,6
х=-1,6/ -0,5
х=3,2

Answer 2

To solve the equation, follow these steps:

1. Distribute the -0.5 to both terms inside the parentheses.
2. Simplify the equation.
3. Isolate the variable x on one side of the equation.

Let's do it step by step:

1. Distribute -0.5 to both terms inside the parentheses:

4 - 0.5(x) - 0.5(9) = -2.1

2. Simplify the equation:

4 - 0.5x - 4.5 = -2.1

3. Combine like terms:

-0.5x = -2.1 + 4 - 4.5 -0.5x = -2.6

4. Now, isolate x by dividing both sides by -0.5:

x = -2.6 / -0.5

x = 5.2

So the solution to the equation is x = 5.2.