Plug in 2x for y
6x-2x=8 Subtract 2x
4x=8 Divide by 4
x=2
I am positive it is 27. Really you just have to read carefully. 9 books and she wants to bring 3 only You cant add it thats dumb.
Cant Subtract because your answer wouldn't even be the options.
Dividing, the answer would be 3 so no
Multiplication is apprentely the way to go.
9 times 3 is 27
Answer is A.
I may be wrong but thats what I got
Brainliest if satisfied
Would help a lot!
Using equivalent angles, the solutions are given as follows:
a)
.
b)
.
c) 
<h3>What are equivalent angles?</h3>
Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant.
For item a, we have to find the equivalent angle on the 2nd quadrant, where the sine is also positive.
Hence:

Hence
.
For item b, if two angles are complementary, the sine of one is the cosine of the other.
Complementary angles add to 90º = 0.5pi, hence:



The equivalent angle on the second quadrant is:

Hence the solutions are:

For item c, the angles are also complementary, hence:



The tangent is also positive on the third quadrant, hence the equivalent angle is:

Hence the solutions are:

More can be learned about equivalent angles at brainly.com/question/28163477
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