Solve the system of equations by the substitution method.5x - 6y = 2 - 5x2x + 6y = x + 5y + -3
A. {(-1, 2)}
B. {(-1, -2)}
C. {(0, 2)}
D. 
Answer: B
Mathematics
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Solve the inequality and graph the solution.6n + 2 ? 2(2n - 3)
A. n ? -4 
B. n < -4 
C. n ? -4 
D. n > -4 
Mathematics
Evaluate the expression.
-3
A. -8
B. 
C. 8
D. 
Mathematics
Find an explicit description of the null space of matrix A by listing vectors that span the null space.A = 
A. 
, 
, 
, 
B. 
, 
C. 
, 
, 
D. 
, 
, 
Mathematics
Solve the problem.Chris lost $8.29 playing poker in one week. If this continued, what would be his net winnings or losses after five weeks?
A. -$414.50 B. -$4145.00 C. -$41.45 D. $41.45
Mathematics