Hi!
Explanation<em><u>: First you had to do is add m to from both sides. It gave us 13m+m=12-m+m. Then you can simplify, it gave us 14m=12. You can also divide by 14 from both sides. It gave us 14m/14=12/14. And the answer is going to be m=6/7 is the right answer. Hope this helps! And thank you for posting your question at here on Brainly. And have a great day! -Charlie</u></em>
Answer:
8x, 2x^2, 6xy, 5y.
Step-by-step explanation:
Hello, 5x+3x would be 8x since 5+3 is 8. 7x^2-5x^2 would be 2x^2 since 7-5 is 2 (exponents stay the same). 2xy+4xy is 6xy since 2+4 is 6. Lastly, 8y-3y is 5y since 8-3 is 5.
Answer:
Both 8 gallons!
Step-by-step explanation:
Let's say we have x gallons of 25% solution and y gallons of 45% solution.
Then, obviously, x+y=16.
But how much alcohol do we have? That will be 35% of 16 = 5.6
So the second equation you can create is:
0.25x + 0.45y = 5.6
Solve these together and you have your answer.
Let's do the second one times 4 to get integers:
0.25x + 0.45y = 5.6 =>
x + 1.8y = 22.4
Combine with the first:
22.4-1.8y + y = 16
0.8y = 6.4
y = 8
so x = 16-y = 8
I think what your asking for is that x=10
1
Step-by-step explanation:
when we put 1 in the equation the nominator becomes zero and it becomes undefined
