Question

12-6*(2z-0.5)+7z-15=-5z

Answer 1

Раскрываем скобки:
1)12-12z+3+7z-15+5z=0
2)-12z+12z=0
3)12z=12z
4)ч.т.д

Answer 2

Let's begin by simplifying and solving for z:

12 - 6*(2z - 0.5) + 7z - 15 = -5z

First, we can simplify 6*(2z - 0.5) to 12z - 3:

12 - (12z - 3) + 7z - 15 = -5z

Next, we can combine like terms:

-12z + 7z - 5z = 15 - 12 + 3

Simplifying the left side:

-10z = 6

Finally, solving for z:

z = -6/10

Simplifying:

z = -3/5

Therefore, the solution is z = -3/5.