Question

10y-3*(4-3y)=3y-5/21+12,5y+1​

Answer 1

Ответ:

y=536/147 y=3.6462585

Пошаговое объяснение:

10*y-3*(4-3*y) = 3*y-5/21+(25/2)*y+1

10*y-3*4+3*3*y = 3*y-5/21+(25/2)*y+1

10*y-3*4+3*3*y = 3*y-5/21+25/2y+1

-12 + 19*y = 3*y-5/21+25/2y+1

-12 + 19*y = 16/21 + 31*y/2

19y=31y/2+268/21

7y/2=268/21                   /:7/2

y = 268/21 / (7/2)

y = 536/147

Если в записи вопроса нет ошибки, то это ур-е решается так

Answer 2

To solve the equation 10y - 3(4 - 3y) = 3y - 5/21 + 12.5y + 1, you need to simplify and isolate the variable y.

Let's break it down step by step:

1. Distribute the -3 on the left side of the equation: 10y - 3 * 4 + 9y = 3y - 5/21 + 12.5y + 1

2. Simplify both sides: 10y - 12 + 9y = 3y - 5/21 + 12.5y + 1

3. Combine like terms on each side: (10y + 9y) - 12 = (3y + 12.5y) - 5/21 + 1

4. Further simplify: 19y - 12 = 15.5y - 5/21 + 1

5. Move all the terms with "y" to the left side by subtracting 15.5y from both sides: 19y - 15.5y - 12 = -5/21 + 1

6. Combine like terms on both sides: 3.5y - 12 = -5/21 + 1

7. Add 12 to both sides to isolate the "3.5y" term: 3.5y = -5/21 + 1 + 12

8. Simplify: 3.5y = -5/21 + 21/21 + 252/21

9. Continue to simplify: 3.5y = (21 - 5 + 252)/21 3.5y = 268/21

10. Finally, divide by 3.5 to solve for y: y = (268/21) / 3.5 y = (268/21) * (2/7) y = (536/147)

So, the solution to the equation is: y = 536/147