The answer to this is 16.
Answer: what are the options?
Step-by-step explanation:
Answer: 32 degrees
Step-by-step explanation:
Answer: 40%
Step-by-step explanation:
This represents this equation:
70*x =28
x=28/70=0,4
Multiply that with 100 to get the percentage.
Given:
The equation is

To find:
The error and correct solution.
Solution:
We have,

Add 16 on both sides.


Divide both sides by -5.


Third step is incorrect because he divide the equation by 5 instead of -5.
Therefore, the correct solution is
.