Given the system of equations presented here:
2x + 4y = 14
4x + y = 20
Which of the following actitis creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated?

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in