I am not sure if the “+” was supposed to go there or if that was just a typo, so I do apologize if this is wrong... but if it doesn’t belong in the equation at all, 20 = 2X is a fairly simply multiplication problem. You are to divide both sides by the 2 and you should get X = 10, because 2 goes into 20, 10 times; and the 2 goes into 2 only once, therefore the 2 now gets cancelled out. 
Answer: 20 divided by 2 = 2x divided by 2 is now 10 = X. 
Really hope this helps you, have a good day :)
        
             
        
        
        
Explanation:
Consider ...
   x/a = b/c . . . . . find x
Multiplying by the denominator under x gives ...
   x = ab/c . . . . the value of the unknown.
____
In the case where the unknown is in the denominator, you can invert the ratios and solve as above:
   a/x = c/b . . . . . note that x is in the denominator
   x/a = b/c . . . . . equivalent equation, solve as above
 
        
             
        
        
        
Step-by-step explanation:
In order to solve this question we use ratio and proportion
From the question
3 apples were sold for $2.00
Then 
10 apples will be sold for what 
That's
<h2>

</h2>
Hope this helps you
 
        
             
        
        
        
Answer:
y=-4x+5
Step-by-step explanation:
y+3=-4(x-2)
y+3=-4x+8
 -3. -3
y=-4x+5