2x-3=6
2(3)-3=6
multiply the parenthesis
6-3=6
I hope this helped (:
The answer is the you need to know is 100
Answer:
Answer c: 
Step-by-step explanation:
Hi there!
Let´s start writting the formula

If we multiplicate both sides by (x₂ - x₁):

Then if we add y₁ to both sides of the equation:

Then, the right answer is the answer c)
Have a nice day!