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Q: X plus 2y equals 4 y equals 2x plus 7 what does x and y equal to?

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X + ( 2Y - 2X - Y ) is equal to Y - X

The slope of the line of 2x plus 2y equals 7 is (7/2x - 1).

No. They are parallel.

-2x=2y+5 +2x -2y -2y=2x+5 /-2 y=-1/1+2.5

k

Sum Numb!

(3, 2)

(-2, 4)

(-1, 5)

(2, 1)

(4, -1)

(-1, 0)

(-1, 5)

x+2y-2x-y=x y-x=x y=2x

-2x + 2y = 4 is equivalent to twice -2 + y = 2 which is the equation of a straight line.

parallel

many solutions

If: 12 = 2y+x then y = -1/2x+6 So: y = 2x+4 and y = -1/2x+6 which means that they are perpendicular lines

5x-2y+3z-2x-y-4z=3x-3y-z

(3, 3)

(12, 1)

1 solution

They are parallel lines.

They are straight lines.

10-2y