Evaluate the expression using the given values.
x = 7, y = 3
A. 8
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the equation.15(8x - 3) = 8x - 3
A. 
B. 
C. 
D. - 
Mathematics
Use Cramer's rule to solve the linear system.5x + 9y - z = 23 x + 6y - 4z = -144x + y + z = 23
A. (1, 6, 1) B. (5, -1, 6) C. (4, 1, 6) D. (4, -1, -6)
Mathematics
Solve each equation for x.
Mathematics
Convert to a mixed numeral.- 
A. -8
B. -6
C. -7
D. -7
Mathematics