Solve by the substitution method.5x + 5y = 49y = 10 + 2x
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Combine like terms.-3b - 3a - 2c + 2b + 2a
A. -1a - 1b - 2c B. -1a - 1b C. -1a - 1b - 2c D. -5a - 1b - 2c
Mathematics
Determine whether the function is one-to-one.f(x) = -(x - 7)2
A. Yes B. No
Mathematics
Simplify the expression. Write the result using positive exponents only.(8x)0 + 8x0
A. 16 B. 9 C. 7 D. 8x + 1
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.15x2 - 9xy - 20xy + 12y2
A. (3x - 4y)(5x - 3y) B. (3x + 4y)(5x - 3y) C. (3x - 4)(5x - 3) D. (15x - 4y)(x - 3y)
Mathematics