The answer would be (D) Multiply the second equation by 4.
The second equation would become 8x - 8y = -28, and the 8y from the first equation and the -8y from the second would cancel out and you can solve for x.
Answer:

Step-by-step explanation:
<u>Directly Proportion</u>
It's said that y varies directly proportional as x, if:

Where k is a constant of proportionality.
We know that y=7 when x=1/2.
Using the above condition, we can find the value of k:

Solving for k:
k=14
Thus, the equation is:

Answer:
○ D. Yes, x = 12 is a zero of the polynomial.
The quotient is x + 22, and the remainder is 0.
Step-by-step explanation:
On a second thought, I knew something similar to that theorem because factoring them would determine if it has a remainder:
[x - 12][x + 22]
I am joyous to assist you anytime.
* I apologize for the previous answer I gave you.
Answer:
Yes
Step-by-step explanation:
its 20
Answer:
1/2 lemonade -> 2 water
3 lemonade -> ? water
x * 1/2 = 3*2
x/2 = 6
x=12
Step-by-step explanation: