Determine the value of x and y in the following systems of equations. 3x+y=9 x-y=-1

x=2, y=3. (2, 3).

Step-by-step explanation:

3x+y=9

x-y=-1

4x=8

x=8/4=2

2-y=-1

y=2-(-1)=2+1=3

+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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