Question

The equation−3(2x −5)=−12x +15 −18x is solved by four students. They each show the first step of their work. Which student has an invalid first step?

Answer 1

Answer- student x and student y


Hope this helped!!!

Answer 2

Answer: Student X and Y

Explanation:

Student W started off correctly as they simplified the first expression and got rid of the parentheses.

Student Z also started off correctly as they simplified the second expression and combined the like terms.

I don’t see what students X and Y did as their first step but I hope this helps. Sorry if it doesn’t