He made his first mistake in step 5. He used the statement he was trying to prove as a reason.
hope that helps
The answer is (x,y) =(28/11, -21/11)
Answer:
The value of x is
.
Step-by-step explanation:
Given expression is:

We have to solve this for x.
First we will multiply both sides of the equation by 3

2(x-2) = 12x
2x-4=12x
Now we will be subtracting 2x from both sides of the equation
2x-2x-4=12x-2x
-4=10x
10x=-4
Dividing both sides by 10

Hence,
The value of x is
.
The answer is 17 hoped this helped