Select all the correct systems of equations.
Which systems of equations have no solution?
x + 4y = 23
-3x = 12y + 1
2x + y = 17
-4x = 2y - 34
2x + 4y = 22
-X = 2y - 11
3y = 10 - x
y = 7
2x +
2x + y = 15
x = 15 - 2y
y = 13 - 2x
4x - y = -1

step-by-step explanation: i dont

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)