I'm assuming you want us to solve for the unknown variable z

Combine like terms on the right side

Use the distributive property on the left side

Add both sides by 20 to cancel out the "-20" on the left side

Divide both sides by 10

That is the value of the known variable, z, in this equation. Let me know if you need any clarifications, thanks!
~ Padoru
step-by-step explanation:1true 22
Answer:
The weight can vary from 22.5 to 25.5
Here is the solution..x equals to √3..which is equals to 1.73205
Answer:
A) Positive
B) Positive
C) None
D) Positive
Step-by-step explanation:
:)