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Question
Evaluate:
− 7x + 9x + 2x − 2x
Sum
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Solution
− 7x + 9x + 2x − 2x
= 9x + 2x − 7x − 2x
= 11x − 9x
= 2x
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Is there an error in this question or solution?
Evaluate:
− 7x + 9x + 2x − 2x
− 7x + 9x + 2x − 2x
= 9x + 2x − 7x − 2x
= 11x − 9x
= 2x