Move all y terms to both sides
subtract both sides by 3xy
<span>y=3xy-1
y - 3xy = -1
factor out y from the left side: y(1 - 3x) = -1
divide both sides by (1-3x)
y = -1/(1-3x)
</span>
8/1/2=10/n=2*(n-15)/3n*3n=0*3n. Now we do, 2*(n-15)=0, which gives us 2=0. N-15=0. So n=15. Therefore, the answer is n=15.
Answer:
JUSTIFICATION↓
∠1 ≅ ∠2 <u>(∵ Vertically-opposite angles are equal)</u>
Step-by-step explanation:
Since ∠1 lies vertically opposite to ∠2 and vice -versa , therefore ∠1 and ∠2 are equal to each other
Assume that the numbers are X and Y;
The sum of the two numbers is:
X+Y=-12
Their difference is:
X-Y=84
We can present the number X as a funsction from Y, from any of the equation. Let do that from the first: X=-12-Y
Now, in order to have only one unknown we will write X in this form in the second equation:
(-12-Y)-Y=84
-12-Y-Y=84
-12-2Y=84
-12-84=2Y
-96=2Y
Y=-96/2=-48
X=-12-Y=-12-(-48)=-12+48=36
