Question

3)8(y – 7)-3(2 y +9)=15; 2)3x – 5(2 - x) = 54;5)6+(2 - 4x) + 5 = 3(1 – 3x);195x+3(x-1)=6x +11;4)0,6-0,5(y-1)= y +0,5;6) 0,5(2y-1)-(0,5 - 0,2y) +1 = 0;7)0,15(x-4)=9,9-0,3(x - 1);8)3(3x - 1) +2 = 5(1 – 2x)-1.​

Answer 1

Ответ:

Решение в добавленные файле

Answer 2

It seems like you've provided a list of linear equations. If you'd like me to solve these equations for their respective variables, I'd be happy to help. Here are the solutions to each equation:

1. $3 \cdot 8(y - 7) - 3 \cdot (2y + 9) = 15$ Expand: $24y - 168 - 6y - 27 = 15$ Combine like terms: $18y - 195 = 15$ Solve for $y$: $18y = 210$ $y = \frac{210}{18}$ $y = 11\frac{2}{3}$

2. $3x - 5(2 - x) = 54$ Distribute: $3x - 10 + 5x = 54$ Combine like terms: $8x - 10 = 54$ Solve for $x$: $8x = 64$ $x = 8$

3. $6 + (2 - 4x) + 5 = 3(1 - 3x)$ Combine like terms: $8 - 4x = 3 - 9x$ Add $4x$ and $9x$ to one side: $13x = 5$ Solve for $x$: $x = \frac{5}{13}$

4. $195x + 3(x - 1) = 6x + 11$ Distribute: $195x + 3x - 3 = 6x + 11$ Combine like terms: $198x - 3 = 6x + 11$ Subtract $6x$ from both sides: $192x - 3 = 11$ Add $3$ to both sides: $192x = 14$ Solve for $x$: $x = \frac{14}{192}$

5. $0.6 - 0.5(y - 1) = y + 0.5$ Distribute: $0.6 - 0.5y + 0.5 = y + 0.5$ Combine like terms: $1.1 - 0.5y = y + 0.5$ Add $0.5y$ to both sides: $1.1 = 1.5y + 0.5$ Subtract $0.5$ from both sides: $0.6 = 1.5y$ Solve for $y$: $y = \frac{0.6}{1.5}$

6. $0.5(2y - 1) - (0.5 - 0.2y) + 1 = 0$ Distribute and simplify: $y - 0.5 + 0.2y + 1 = 0$ Combine like terms: $1.2y + 0.5 = 0$ Subtract $0.5$ from both sides: $1.2y = -0.5$ Solve for $y$: $y = \frac{-0.5}{1.2}$

7. $0.15(x - 4) = 9.9 - 0.3(x - 1)$ Distribute and simplify: $0.15x - 0.6 = 9.9 - 0.3x + 0.3$ Combine like terms: $0.15x + 0.3x = 10.2 + 0.6$ Solve for $x$: $0.45x = 10.8$ $x = \frac{10.8}{0.45}$

8. $3(3x - 1) + 2 = 5(1 - 2x) - 1$ Distribute and simplify: $9x - 3 + 2 = 5 - 10x - 1$