Question 12 What is the solution of the system of equations?
7x + 2y = 20
7
2
2 + 11
А
(x, y) = (2, 3)
B
(x, y) = (2, 4)
С
All real numbers
D
No solution

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

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