If you have a problem like:
4x+2y=20
2x+2y=16
You would subtract
4x-2y=20
-2x+2y=16
You would get the new problum
2x=4
You now want to divide the 2 on both sides to solve for x
x=2
Now that you've solved for X you want to solve for y. So use substitution to solve for y. You would want to substatute the x for the 2 in either of the problums. I'll use the first one.
4(2)+2y=20
You first want to multiply te 4(2) you would get a new problum.
8+2y=20
Now you want to subtract the 8 on both sides.
2y=12
The last step to solve for y is to divide the 2 on both sides.
Y=6
So your answers would be
x=2
y=6
Answer:
Example: There are 7 packs of candy, but only two people can share it equally.
Step-by-step explanation:
7/2= 3.5. If each person gets 3.5 bags, they both have an equal amount.
The answer should be 2 but i really don't know so its 2
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I think that the answer would be 6+-8 because it equals -2 and 6-(-8)= -2
Answer:
I can't understand so don't worry
