- A
- B
- C
- D
Step-by-Step Solution
Collect like terms: and , so the weight is and are unlike, so not . The weight means , not 0, so is wrong.
Answer: C)
The scale is balanced. The weight marked '?' on the right pan is the four weights on the left written in simplest form. Which expression is it?
Class 7Like and Unlike TermsAlgebra
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