What is the result of adding these two equations?

4x - 4y = -2

-9x - 4y = -3

(1/13, 15/26)

Step-by-step explanation:

If you really want to add them without doing anything to them, we get:

    4x - 4y = -2

+  -9x - 4y = -3

=   -5x - 8y = -6

But I suspect you want to solve for x and y.

In this case, if you want to eliminate and solve for x and y, we will subtract instead to make it easier:

    4x - 4y = -2

-   -9x - 4y = -3

=   13x + 0y = 1

    13x = 1

    x = 1/13

Plug x back in to get y:

    4x - 4y = -2

    4(1/13) - 4y = -2

    4/13 - 4y = -2

    4y = 30/13

    y = 15/26

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3