MORE FREE POINT that i somehow received after doing like three problems

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)