how do u do this solve for x and y 3x+2y= -9 thanx?

Question

sorry this is the whole sum
solve for x and y
3x+2y= -9
2x-4y=-22

Answer 1

Looking at the equation, one of the answers would be:

x=-1, y=0.

Answer 2

x = -1 x = -3 x = -5
y = -3 y = 0 y = 3

x = -2 x = -4 etc
y = -3/2 y = 3/2

So you can see that
(x, (-3(x+3)2)) is and answer with (x,y)
take x = -9
[-9, ((-9+3)(-3/2))] ------ 3(-9) + 2((-9+3)(-3/2)) = -9
-27 + 18 = -9 check !!
So for every x, y will equal ((-3/2) (x+3))!!! This is the solution for all values of x, in N

Answer 3

for an equation of variables to be solved it is essential that you have the number of equations equal to the number of variables involved.
in your question you have two variables x and y but only one equation. therefore you cannot have unique values of x and y each. however you can find value of one variable in terms of the other

e.g.
for x

3x = -9 - 2y and hence x = - (9+2y)/3

for y

2y = -9 -3x and hence y = - 3(3+x)/2

Answer 4

x = -3 y = 0 ... but there are other ways to answer as well

Answer 5

3x+2y= -9
3x = -9 - 2y
x = (-9-2y)/3
2y = -9 -3x
y = (-9-3x)/2

Answer 6

You'll need one more equation; otherwise, you won't be able to solve it.

Answer 7

we require another equation.................... we cant solve this if we.............. then we get many answers