Answer:
y=11
x=-4
Step-by-step explanation:
y =-x+7
2x-5y=-7
insert the first equation into the second like so...
2x+5x-35=-7
Now rearrange...
2x+5x=-7+35
Now solve...
7x=-28
Now incert x in any equation...
y=4+7
the balance of nature is changed
your answer
A. 1/3
6/18 = 0.3333333333333333333
so in fraction it is 1/3
YXW
x=2
-3 = -2x +1
+3 +2x = +2x +3
2x=4
divide them both by 2
6x - 3y = 3 will be graph 1
4x - 2y = 8 will be graph 2
