Question

Решите примеры пожалуйста!4x-0,7=x+4,1:3x-(5x+2)=19;​

Answer 1

Відповідь:

1)x= - 7

2) x=  - 21

           ----

            2

Пояснення:

Answer 2

Ответ:

1:

4x-0,7=x+4,1

4x-x=4,1+0,7

3x=4.8

x=1,6

2:

3x-(5x+2)=19

3x-5x-2=19

-2x-2=19

-2x=19+2

-2x=21

x=-10,5

Answer 3

4x - 0.7 = x + 4.1:

First, we need to isolate the variable x on one side of the equation. We can do this by subtracting x from both sides and adding 0.7 to both sides:

4x - x = 4.1 + 0.7

Combining like terms on the left side and simplifying on the right side gives:

3x = 4.8

Finally, we can solve for x by dividing both sides by 3:

x = 1.6

Therefore, the solution is x = 1.6.

3x - (5x + 2) = 19:

We can simplify the left side of the equation by distributing the negative sign to the terms inside the parentheses:

3x - 5x - 2 = 19

Combining like terms gives:

-2x - 2 = 19

Next, we can isolate the variable x by adding 2 to both sides:

-2x = 21

Finally, we can solve for x by dividing both sides by -2:

x = -10.5

Therefore, the solution is x = -10.5.