the expression -3m - 2m + (5 - m) + 7 was simplified as 2 - 4m. without simplifying, explain how you can…
the expression -3m - 2m + (5 - m) + 7 was simplified as 2 - 4m. without simplifying, explain how you can show that it has been simplified correctly.
Answer
Brief Explanations:
Substitute a value for (m) into both the original expression (-3m-[2m+(5 - m)]+7) and the simplified expression (2 - 4m). If the results are the same for the chosen value of (m), it is likely that the simplification is correct. You can choose multiple values of (m) for more - accurate verification.
Answer:
Substitute a value for (m) into both expressions and check if the results are equal. Multiple values of (m) can be used for better verification.