Simplify the expression $3xy + 2x - xy - 3x$.
A$2xy - x$
B$4xy + 5x$
C$2xy + 5x$
D$3xy - x$
Answer & Solution
Correct answer: A. $2xy - x$
Combine like terms by adding their coefficients. The $xy$ terms: $3xy - xy = 2xy$. The $x$ terms: $2x - 3x = -x$. Putting them together gives $2xy - x$. Option D pairs the wrong $xy$ coefficient with the right $x$ coefficient.
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