alleryWhat is 4x + 3x - 2x in simplest form?
A5x
B9x
C4x
D24x
Answer & Solution
Correct answer: A. 5x
1. All three are like terms, so only the coefficients are combined.
2. 4 + 3 - 2 = 5, so the result is 5x.
3. 9x ignores the subtraction; 24x wrongly multiplies the coefficients.
_Source: Wikipedia, Elementary algebra, Simplifying expressions_
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