Question

(12Х5:13+у)-9х6:13=7х7:13

Answer 1

(12*5:13+y)-9*6:13=7*7:13

(12*5/13+y)-9*6/13=7*7/13

(60/13+y)-54/13=49/13

60/13+y-54/13=49/13

y=49/13-6/13

y=43/13

y=3 целых 3/4 дробных

y=3.30

То что (/) это дробь.

Answer 2

Let's solve this equation step by step:

1. Start with the division and multiplication operations inside the parentheses: (12 * 5 / 13 + y) - (9 * 6 / 13) = 7 * 7 / 13

2. Calculate the products and divisions first:

   (60 / 13 + y) - (54 / 13) = 49 / 13

3. Now, simplify each fraction:

   (60 / 13 + y) - (54 / 13) = 49 / 13

4. To get rid of the fractions, you can multiply both sides of the equation by 13 to cancel out the denominators:

   13 * (60 / 13 + y) - 13 * (54 / 13) = 13 * (49 / 13)

5. This simplifies to:

   60 + 13y - 54 = 49

6. Combine like terms:

   13y + 6 = 49

7. Subtract 6 from both sides:

   13y = 49 - 6 13y = 43

8. Finally, divide by 13 to isolate y:

   y = 43 / 13

So, the solution to the equation is:

y = 43 / 13

You can leave it as a fraction or convert it to a decimal if needed:

y ≈ 3.3077 (rounded to four decimal places)