Question

1-1/2(1-у)=-0,2(у+1)

Answer 1

1 - 1/2(1-у)= -0,2(у+1)

1-1/2+1/2у= -0,2у-0,2

1/2у+0,2у=1/2-0,2

0,7у=0,3

у=0,3:0,7

у= 3/7

Ответ: 3/7

Answer 2

To solve the equation 1-1/2(1-y)=-0.2(y+1), we can follow these steps:

1. Distribute the terms on both sides of the equation: 1 - (1/2)(1 - y) = -0.2(y + 1)

   Simplifying the right side: 1 - 1/2 + (1/2)y = -0.2y - 0.2

2. Combine like terms: 1/2 + (1/2)y = -0.2y - 0.2

3. Move all terms involving y to one side of the equation: (1/2)y + 0.2y = -0.2 - 1/2

   Simplifying the right side: (1/2)y + 0.2y = -0.2 - 0.5

4. Combine the y terms: (1/2 + 0.2)y = -0.7

   Simplifying the left side: (0.7)y = -0.7

5. Divide both sides by 0.7 to solve for y: y = -0.7 / 0.7

   Simplifying the right side: y = -1

Therefore, the solution to the equation is y = -1.