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:
y=-x+2
x+y=2
Step-by-step explanation:
hopefully this helps :)
60% = 0.6
12 / 0.6 = 20
answer 12 is 60% of 20
Answer:
Is this middle school math I believe tha answer is 0.9
Step-by-step explanation:
I did it before pretyy sure thats what it is
