Simplify the algebraic expression, or state that the expression cannot be simplified.3x7 - 7x7
A. cannot be simplified
B. -28x
C. -4x14
D. -4x7
Answer: D
Mathematics
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Solve the equation.(x + 5)(x + 1) = 60
A. -11, 5 B. 1, 5 C. -5, -1 D. -5, 11
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Write an equation of the line through the given point with the given slope. Write the equation in slope-intercept form.(-7, 10); m = 0
A. x = -7
B. y = 
x + 0
C. y = 10
D. y = 
x + 0
Mathematics
Solve using Cramer's rule.-2x - 2y = -16 3x + 2y = 18
A. (-2, -6) B. (2, 6) C. (-6, 2) D. (6, 2)
Mathematics
Solve the problem.Use determinants to determine whether the points (-1, 9), (1, 3), and (4, -6) are collinear.
A. Yes B. No
Mathematics