livelovelaughluna livelovelaughluna

18-05-2021
Mathematics

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Which expression is equivalent to (7s - 21)-(3s - 4st + 7t)?

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Yang100 Yang100

18-05-2021

Answer:

4s+4st-21-7t

Step-by-step explanation:

(7s-21)-(3s-4st+7t)

7s-21-3s+4st-7t

7s-3s-21+4st-7t

4s-21+4st-7t

4s+4st-21-7t

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