Question

(9, 4/5 - х) : 9 = 0,7​

Answer 1

Пошаговое объяснение:

(49/5-X)*1/9=0,7

49-5X/5*1/9=0,7

49-5X/45=0,7⇒МЫ УМНОЖИЛИ ОБЕ ЧАСТИ НА 45

49-5X=31,5

-5X=31,5-49

-5X=-17,5

X=3,5

Answer 2

To solve the equation (9, 4/5 - x) / 9 = 0.7 for x, you can follow these steps:

1. First, multiply both sides of the equation by 9 to get rid of the fraction on the left side:

   (9 * (4/5 - x)) = 0.7 * 9

2. Distribute the 9 on the left side:

   (9 * 4/5 - 9x) = 6.3

3. Now, subtract 9 * 4/5 from both sides to isolate the term with x:

   9 * 4/5 - 9x = 6.3 - 9 * 4/5

4. Calculate 9 * 4/5:

   (36/5) - 9x = 6.3 - (36/5)

5. Now, subtract (36/5) from both sides:

   -9x = 6.3 - (36/5)

6. To combine the fractions on the right side, you need a common denominator, which is 5:

   -9x = (5 * 6.3 - 36) / 5

7. Calculate the numerator on the right side:

   -9x = (31.5 - 36) / 5

8. Continue simplifying:

   -9x = (-4.5) / 5

9. Finally, divide both sides by -9 to solve for x:

   x = (-4.5 / 5) / (-9)

   x = (4.5 / 5) / 9

   x = (4.5 / 5) * (1/9)

   x = 0.1

So, the solution to the equation is x = 0.1.