Solve the equation.-5x - 21 = -2x + 6
A. {7}
B. {9}
C. {-9}
D. {-7}
Answer: C
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Write the fraction in simplest form. Assume that all variable factors in the denominator are not equal to zero.
A. 
B. 
C. 
D. 
Solve the system of equations.
A. x = 2 - 5z, and y = 3z - 1, where z is any real number
or {(x, y, z) |x = 2 - 5z, and y = 3z - 1, where z is any real number}
B. x = 2 + 7z, and y = -3z - 1, where z is any real number
or {(x, y, z) |x = 2 + 7z, and y = -3z - 1, where z is any real number}
C. x = 1 - 5z, and y = 3z - 
, where z is any real number
or 
D. x = -2 - 7z, and y = -3z -1, where z is any real number
or {(x, y, z) |x = -2 - 7z, and y = -3z -1, where z is any real number}
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.4x2 - 32x + 64
A. 4(x - 4)(x - 4) B. (x - 4)(4x - 16) C. Prime D. 4(x - 16)(x + 1)
Let p represent a true statement, and let q and r represent false statements. Find the truth value of the given compound statement.q ? ~r
A. False B. True