Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ?
B. {(-4.5, -1.85)}
C. infinitely many solutions; {
y = 1.1x + 3.1} or {
y = 0.5x + 0.4}
D. {(4.5, -1.85)}
Answer: B
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