What is the result of subtracting the second equation from the first? \begin{aligned} -7x-y &= 0 \\\\ 7x+8y &= -6 \end{a
ligned} −7x−y=0 7x+8y=-6 =0 =−6
1 answer:
Answer:

Step-by-step explanation:
We are given with two equations
first equation is 
second equation is

we find the result of subtracting two equation
subtract the second equation from the first, so
first equation - second equation, multiply second equation by -1 and then add it with first equation


Now add both equations, we get

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Answer:

Step-by-step explanation:
Given

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I believe the answer is D. because -12 + -1 equal -13
41 times 0.15 equals 6.15. as you can't have 0.15 of a band, that means only 6 bands will compete.
The answer is 0
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n!/ r!(n-r)!
4!/ 9!(4-9)!