Question

Simplify: 8y - x + 11, when x = 2y - 3​

Answer 1

Answer: 6y + 14

Explanation:

Substitute x into the equation so you have only y-terms, so

8y - (2y - 3) + 11. The brackets are needed as the equation wants negative x so the whole of the x value needs to be multiplied by -1, so the equation is this:

8y -1*(2y-3)+11

Once you have multiplied everything you will get :

8y - 2y + 3 + 11

Then collect all like terms to get

6y + 14

Answer 2

6y + 14

Explanation:

replace the x in the given expression with 2y - 3

8y - (2y - 3) + 11 ➡ 8y - 2y + 3 + 11 = 6y + 14