1)To solve the first equation, we need to distribute the 5 on the right side of the equation:
2 - 5y = 5 - 10y

Next, we can combine like terms:
2 + 5 = -10y + 5y
7 = -5y

Now, we can solve for y by dividing both sides by -5:
y = -7/5

2)To solve the second equation, we first distribute the 0.5 on the right side:
2z = 0.5z - 0.5 + z

Next, we combine like terms by adding z to both sides:
2z - 0.5z - z = -0.5
0.5z = -0.5

Finally, we solve for z by dividing both sides by 0.5:
z = -1