Question

|х|-(-17/20)=-0,4 помогите пожалуйсто!!! Очень срочно!! Буду очень благодарна! ​

Answer 1

Ответ:

Пошаговое объяснение:

To solve the equation, we can simplify the left-hand side using the rules of absolute value and negative signs:

|х| - (-17/20) = -0.4

|х| + 17/20 = -0.4

Now we can isolate the absolute value term by subtracting 17/20 from both sides:

|х| = -0.4 - 17/20

|х| = (-8/20) - (17/20)

|х| = -25/20

We can then solve for the value of x by considering the two possible cases for the absolute value of x:

Case 1: x is positive

If x is positive, then |x| = x, so we have:

x = -25/20

Simplifying, we get:

x = -5/4

So one solution to the equation is x = -5/4.

Case 2: x is negative

If x is negative, then |x| = -x, so we have:

-x = -25/20

Multiplying both sides by -1, we get:

x = 25/20

Simplifying, we get:

x = 5/4

So another solution to the equation is x = 5/4.

Therefore, the equation has two solutions: x = -5/4 and x = 5/4.