Question

What is the solution to this system of equations?

X+ 2y = 4
2x-2y = 5

A. (3, -5 1/2)
B. (3, 1/2)

C. no solution
D. infinitely many solutions

Answer 1

B

Explanation:

substitute the given value of 2y into the equation of 2x-2y=5 l, then solve equation for x, you'll get x=3

then subs into other equation to get y value

y=1/2

Answer 2

The answer is B
X = 3 and 1/2= Y
3 + 2(1/2) = 4
3 + 1 = 4
Half of 2 = 1, making B the answer