2x + 2y=-2 (Dividing it by two)x+y=-1 (By transposition)x=-y-1
-4x=2y-16 +16 +16 (-4x+16)=(2y) /2 /2 y=-2x+8
2. If x=5 & y =3 then: 3x + 2y = 3 x 5 + 2 x 3 = 15 + 6 = 21 2x + 3y = 2 x 5 + 3 x 3 = 10 + 9 = 19 ⇒ 3x+2y exceeds 2x+3y by 21 - 19 = 2. Alternatively: 3x+2y exceeds 2x+3y by: (3x+2y) - (2x + 3y) = 3x + 2y - 2x - 3y = x - y If x=5 & y=3 then this becomes: x - y = 5 - 3 = 2
-3x + 2y = 8To get into slope intercept, we must set the equation equal to y2y = 3x + 8y = 3/2x + 8/2y = 3/2x + 4
8-x2y 8-2xy 2xy-8
Solve for y: 2x+2y=8 2y=-2x+8 y=-x+4 f(x)=-x+4 I think that's what you mean.
If you mean: x+2y = 8 Then: y = -1/2x+4 Perpendicular equation: y = 2x+4
2x - 4y = 8 2x = 4y + 8 x = 2y + 4
or x + y = 6 That cannot be simplified further and to solve for either variable will require another independent eqaution in x and y
Any pair of numbers where the 'y' is 5 more than the 'x'. There are an infinite number of suitable pairs. 2y-2x=10 2y-2x+2x=10+2x 2y=2x+10 divide both side by 2. y=x+5
2y = -10y = -58 - 2x - 2(-5) = -108 - 2x + 10 = -10-2x = -10 - 182x = 28x = 14Check:2y = 8 - 2x - 2y = -102(-5) = 8 - 2(14) - 2(-5) = -10-10 = 8 - 28 + 10 = -10-10 = -20 + 10 = -10-10 = -10 = -10
The result of the equation x + 2y - 2x - y equals x simplifies to y - x.
X + ( 2Y - 2X - Y ) is equal to Y - X
5
x = 8 and y = 0
x + 2y = -5 2x + 3x = -9 5x = -9 x + 2y = -5 x = -2y - 5 5(-2y - 5) = -9 -10y - 25 = -9 -10y = 16 y = -5/8 x = -2y - 5 x = -2(-5/8) - 5 x = -5/4 - 5 x = -25/4 (-25/4, -5/8)
Factor out a 2; so it is 2(x+2y).