Can someone please help me

The error is located in step 9, because the student made the following operation: , instead of , presented in step 4) of our demonstration. The real solution is 9.

Step-by-step explanation:

First, we proceed to show the appropriate process to solve the equation for by algebraic means. That is:

1) Given

2) Definition of substraction

3) Distributive property

4)  /

5) Compatibility with addition/Commutative and associative properties

6) Existence of additive inverse/Modulative property

7) Compatibility with multiplication/Commutative and associative properties

8) Existence of multiplicative inverse/Definition of division/Result

The error is located in step 9, because the student made the following operation: , instead of , presented in step 4) of our demonstration. The real solution is 9.

table 3 represents a direct variation function. : )