4x + 2y = 6
At the y-intercept, x=0 .-2y = 18y = -9
6x-2x-6xy-2x-2y4x-2y=2x-2y-14xy
Substitution is used in Systems of Linear Equations. When you have two equations, such as y=3x+1 and 2y+5=9x+1, then substitution can be used. 2y could be substituted with 2(3x+1). You would have now the equation 6x+2=9x-1, which is more solvable.
If you mean: 2y = -4x-12 then y = -2x-6 and -6 is the y intercept
2y = 6x - 8y = 3x - 4========m(slope) = 3=========
2y - 6x = -8 You have two unknowns and only one equation. In the absence of any other information, this equation cannot be solved. What can be done is to make each unknown the subject of the equation. 2y = 6x - 8 y = 3x - 4 6x = 2y + 8 3x = y + 4 x = (y + 4)/3
Assuming the equation is x2 - y2 - 6x - 2y = 60this is equivalent tox2 - 6x + 9 - y2 - 2y - 1 = 60 + 9 - 1= (x - 3)2 - (y + 1)2 = 68Assuming the equation is x2 - y2 - 6x - 2y = 60this is equivalent tox2 - 6x + 9 - y2 - 2y - 1 = 60 + 9 - 1= (x - 3)2 - (y + 1)2 = 68Assuming the equation is x2 - y2 - 6x - 2y = 60this is equivalent tox2 - 6x + 9 - y2 - 2y - 1 = 60 + 9 - 1= (x - 3)2 - (y + 1)2 = 68Assuming the equation is x2 - y2 - 6x - 2y = 60this is equivalent tox2 - 6x + 9 - y2 - 2y - 1 = 60 + 9 - 1= (x - 3)2 - (y + 1)2 = 68
-6x = 2y - 120 -2y -2y -2y - 6x = -120 +6x +6x -2y = 6x - 120 -2y/-2 = 6x/-2 - 120/-2 y = -3x + 60
6x - 2y = 22Solve for x:6x = 2y + 22x = 1/3y + 11/3Solve for y:-2y = -6x + 22y = 3x - 11You can not simplify the equations further without having one of the variables solved, or having more than 1 equation (such as a system)
2y-3x=4
6x+5k=12
-1
2y = 6x+2
Yes, it is a linear straight line equation.
-9x + 2y = -69 So 2y = 9x - 69 The other equation can be written as 6x - 4y = 54 or 6x - 2*2y = 54 Substituting for 2y gives 6x - 2*(9x - 69) = 54 6x - 18x + 138 = 54 12x = 84 x = 7 and then 2y = 9x - 69 = 9*7 - 69 = 63-69 = -6 so that y = -3
-3