Question

-X-(-2 1/2+5 3/4)=-5 5/6​

Answer 1

Ответ:

2 7/12

Пошаговое объяснение:

-х - (-2 1/2 + 5 3/4) = -5 5/6

-х + 2 1/2 - 5 3/4 = -5 5/6

-х + 2 6/12 - 5 9/12 = -5 10/12

-х - 3 3/12 = -5 10/12

-х = -5 10/12 + 3 3/12

-х = -2 7/12

х = 2 7/12

Answer 2

Решение смотри на фото

Answer 3

Let's simplify the expression step by step:

-X - (-2 1/2 + 5 3/4) = -5 5/6

First, let's simplify the expression inside the parentheses:

-2 1/2 + 5 3/4

To add these two mixed numbers, you'll want to have a common denominator. In this case, the common denominator is 4:

-2 2/4 + 5 3/4

Now, add the whole numbers separately:

-2 + 5 = 3

Now, add the fractions:

2/4 + 3/4 = 5/4

So, the expression becomes:

-3 1/4

Now, substitute this back into the original equation:

-X - (-3 1/4) = -5 5/6

Now, let's remove the negative sign from both sides of the equation to isolate X:

X + 3 1/4 = -5 5/6

Next, subtract 3 1/4 from both sides of the equation to solve for X:

X = -5 5/6 - 3 1/4

To subtract these mixed numbers, you'll again want a common denominator:

-5 5/6 = -5 10/12 = -5 5/12

-3 1/4 = -3 3/12 = -3 1/12

Now, subtract the two fractions:

(-5 5/12) - (-3 1/12) = -5 5/12 + 3 1/12

Now, add the whole numbers:

-5 + 3 = -2

Add the fractions:

5/12 + 1/12 = 6/12 = 1/2

So, the result is:

-2 1/2

Therefore, the value of X is -2 1/2.