(2x + 2y) is exactly the same thing as 2(x+y).
In order to know how much it actually is, you have to know
the numerical values of both 'x' and 'y'.
The equation "x plus 2y equals 5" is: x + 2y = 5 2y = 5 - x y = 5/2 - 1/2x y = -1/2x + 5/2
-2x - 2y = -122x + 2y = 122y = 12 - 2xy = 6 - x
2y + 2x = 20 y - 2x = 4 Add the two equations: 3y = 24 so that y = 8 Substitute this value of y in the second equation: 8 - 2x = 4 then 4 = 2x so that x = 2 Thus the ordered pair (y,x) = (8,2)
x + 2y = 27 2x - y = 19 y = 2x - 19 x + 2(2x - 19) = 27 x + 4x - 38 = 27 5x = 65 x = 13 y = 2(13) - 19 y = 7
4x+3y-2x+y 4x-2x+3y+y 2x+4y Taking out 2 common 2(x+2y) Hence the required answer is 2(x+2y)
The slope of the line of 2x plus 2y equals 7 is (7/2x - 1).
-2x=2y+5 +2x -2y -2y=2x+5 /-2 y=-1/1+2.5
X + ( 2Y - 2X - Y ) is equal to Y - X
The result of the equation x + 2y - 2x - y equals x simplifies to y - x.
2y = 4x + 4y = 2x + 2
k
Sum Numb!
(2, 1)
(-1, 5)
(3, 2)
(-2, 4)
(-1, 5)