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As an equation, x = -2y cannot be solved without further information.
To solve an equation (or multiple equations), the number of unknowns (x, y etc.) must be equal to or less than the number of equations. In your example you have 2 unknowns and 1 equation, so it does not work.
What else can I help you with?
Solve for x 3x - 2y equals 6?
x=4 x=4
How do you the solve the equation x equals 2y in terms of x?
To solve for y in terms of x, divide both sides of the equation by 2: y = x/2.If x=2y then you have already solved for x.
How do you solve this equation and check you answer 2x-3y equals 8 x-2y equals 2?
x=10 y=4
What is x plus 2y equals 6?
X+2y=6 how to solve? 2y=6-x then y=3-x so y=3-x
How do you solve 4x-2y equals 10?
You need more information to solve for x and y. One answer is x=3 and y=1.
Solve for x 3x - 2y equals 6?
x=4 x=4
How do you solve 2x-2y equals 1?
get it to y= -2y = 1 - 2x y = x - 0.5
W plus x equals 2y plus z for x?
you can not solve this equation
How do you the solve the equation x equals 2y in terms of x?
To solve for y in terms of x, divide both sides of the equation by 2: y = x/2.If x=2y then you have already solved for x.
Solve for y if the equation is -2x - 2y equals -12?
-2x - 2y = -122x + 2y = 122y = 12 - 2xy = 6 - x
How do you solve each system by substitution or addition 2y-x equals 3 and x equals 3y-5?
Add the two equations together. The x disappears. 2y - x = 3 + x = 3y - 5 ------------------------ 2y = 3y -2 Can you finish it from there?
What are the coordinates of the x-intercept -x-2y equals 6?
solve for x -x-2y=6 -x=2y+6 x=-2y-6 plug in y=0 x=-6 when y is 0 therefore the x intercept is (-6,0)
How do you solve this equation and check you answer 2x-3y equals 8 x-2y equals 2?
x=10 y=4
What is x plus 2y equals 6?
X+2y=6 how to solve? 2y=6-x then y=3-x so y=3-x
What is the solution of x equals 6y-4 and x equals -2y plus 28 using substitution?
x=6y-4x=-2y+28Substitute (6y-4) for x in the second equation and solve for y:6y-4=-2y+288y=32y=4Then solve for x:x=6(4)-4=20(20,4)
How do you solve 4x-2y equals 10?
You need more information to solve for x and y. One answer is x=3 and y=1.
How do you solve 6x plus 2y equals 4?
6x+2y=4 gives y=2-(1/3)x
