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Q: How do you solve -2x plus y equals -3 and -x plus 2y equals 3?

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many solutions

2y = 4x + 4y = 2x + 2

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

A single linear equation in two variables cannot be solved.

y=16 x= -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

2x = 2y + 3 So 2y = 2x - 3 and y = x - 1.5 It is not possible to solve a single linear equation in two variables, other than to express one variable in terms of the other.

get it to y= -2y = 1 - 2x y = x - 0.5

k

Sum Numb!

(3, 2)

(-2, 4)

(-1, 5)

(2, 1)

(4, -1)

(-1, 0)

(-1, 5)

-2x - 2y = -122x + 2y = 122y = 12 - 2xy = 6 - x

Solve for y: 2x+2y=8 2y=-2x+8 y=-x+4 f(x)=-x+4 I think that's what you mean.

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.

2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.

3x - 5 = 2y3/2X - 5/2 = y

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