7x - 4y = -28
3x +4y = -12
Using the elimination method because y is already eliminated
10x = -40
So x = -4
Then plug the -4 into the first equation....
7(-4) - 4y = -28
-28 - 4y = -28
-4y = 0
y = 0
I got: -4,0
1000 + 500 + 250 + 125 + 62.5 = 1,937.5
6 x (-1)
3 x (-2)
(-3) x 2
-6 x 1
-60/10
-6000/1000
-|-6|
-5 + (-1)
-3 + (-3)
-10 + 4
the additive inverse of 6
-6 + 0
0 - 6
It may help if you look your question you asked up and look were it is on math-way
