Question

720:(5y-12)-56=34.....

Answer 1

Раскрываем скобки
720:5у - 60 -56= 34
переносим все известные на одну сторону и получим
720:5у= 34+56+60
720:5у=150
у= 720*5:150
у=24

Answer 2

To solve the equation 720:(5y-12)-56=34, you can follow these steps:

1. Start by simplifying the equation: 720/(5y-12) - 56 = 34

2. Add 56 to both sides of the equation to isolate the fraction on the left side: 720/(5y-12) = 34 + 56

3. Combine the constants on the right side: 720/(5y-12) = 90

4. Now, to solve for (5y-12) in the denominator, you can cross-multiply: 720 = 90(5y-12)

5. Distribute 90 on the right side: 720 = 450y - 1080

6. Add 1080 to both sides of the equation to isolate 450y: 720 + 1080 = 450y

7. Combine the constants on the left side: 1800 = 450y

8. Finally, divide both sides by 450 to solve for y: y = 1800 / 450 y = 4

So, the solution to the equation is y = 4.