Question

Solve the equation 3.5z-2.7z=-6

Answer 1

First you do 3.5z-2.7z= .8z then you divide .8 with -6, which gives you -7.5 so z= -7.5

Answer 2

Answer: The value of z is -0.75.

Explanation:

The given equation is
`3.5z-2.7z=-6`

In term to solve it to find z , we first simplify the left side.

By using distributive property :
`ba+ca=(b+c)a` , we get

`(3.5-2.7)z=-6\\\\\Rightarrow 0.8z=-6`

Now , Divide both sides by 0.8 , we will get

`z=(-6)/(0.8)=(-60)/(8)\\\\\Rightarrow\ z=-7.5`

Hence, the value of z is -0.75.