Clear fractions then solve by substitution.x + 
y = y - 3
x - y = 3x - y
A. {(1, 6)}
B. {(0, 6)}
C. {(3, 0)}
D. ?
Answer: B
Mathematics
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For the term 7y, the exponent on the y is ___.
A. one B. two C. five D. seven
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 3 B. 0.05 C. 0.1 D. 0.5
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Evaluate the integral.
dz
A. csc 
+ C
B. - 
csc 
+ C
C. -cot 
+ C
D. -csc 
+ C
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Use the product-to-sum identities to rewrite the expression as the sum or difference of two functions.sin 
? sin 
?
A. 
B. 
C. 
D. 
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