Question

(х-3 13/21)+ 2 10/21 =7 2/21

Answer 1

Ответ на фото. Надеюсь понятно.

Answer 2

Let's solve the expression step by step:

(х - 3 13/21) + 2 10/21

First, let's add the whole numbers:

-3 + 2 = -1

Now, let's add the fractions:

13/21 + 10/21 = 23/21

So, the expression simplifies to:

x - 1 + 23/21

Now, let's add the fractions to the whole number:

-1 + 23/21

To add these, you need a common denominator, which is 21:

-21/21 + 23/21 = 2/21

So, the final result is:

x + 2/21 = 7 2/21

To isolate x, we can subtract 2/21 from both sides:

x = 7 2/21 - 2/21

x = 7 0/21

x = 7

So, the value of x that satisfies the equation is 7.