Google on the word SCALAR. that's the word your looking for
        
             
        
        
        
7 will never equal 8 so there is no solution. so i think it is C
        
             
        
        
        
2980 round everything to the nearest tens and add with your head to get it
        
                    
             
        
        
        
Given:
The equation is

The incorrect solution steps are given.
To find:
The first error.
Solution:
We have,

Using distributive property, we get


The given step 1 is  , which is not correct.
, which is not correct.
Therefore, there is first error in step  1 because the distribution property is not used properly.
Hence, the correct option is D.
 
        
             
        
        
        
Answer:
Slope = 2
Step-by-step explanation:
