Solve the system.x - y + z = -1x + y + z = -11x + y - z = -3
A. {(-2, -5, -4)}
B. ?
C. {(-4, -2, -5)}
D. {(-2, -4, -5)}
Answer: A
Mathematics
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Factor out the greatest common factor from the expression.
?
?
A. 
B. 
C. 
D. 
E. 
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Find the least common denominator for the expression.
- 
A. (13x - 18)(13x + 18) B. 10x(2x + 11)(13x - 18)(13x + 18) C. 10x(2x + 11) D. (13x - 18) or (13x + 18)
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Write the rate as a unit rate.32 miles on 2 gallons of gas
A. 16 miles/gallon B. 64 miles C. 34 gallons D. 0.063 miles/gallon
Mathematics