First solve for x in the first equation
x + 7y = 0
x = -7y
since x = -7y we can substitute -7y into the other equation wherever there is an x
2x - 8y = 22
2(-7y) - 8y = 22
-14y - 8y = 22
-22y = 22
y = -1
Now let's substitute -1 back into either of the original equations so we can solve for x
x + 7y = 0
x + 7(-1) = 0
x - 7 = 0
x = 7
So your solution set is
(7, -1)
Answer:
I also don't know the answer to this question
Answer:
(0,-7) (5,3) (-5,-11) (10,1) theres a bunch of the points
hope this helps, if so hit that thanks button ;D
Step-by-step explanation:
If you have a calculator I would suggest using that, but otherwise here's the process:
170
+130
--------
Add the zeros.
0
+0
-----
Add 70 and 30.
70
+30
------
Carry the 1 on the 10
Add 100, 100, and 100 (From the 10)
100
100
+100
--------
Add 300, 0, and 0.
300
0
+ 0
---------
The answer is 300.
i am completely confused how is this even physically possible what the heck
