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Mathematics, 25.01.2022 02:00 oreonb11

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In the expression (21 - 3) x (7 + 2) = (12 - 4),
- ,
what operation should you perform last?
Explain.
Can someone pls help

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In the expression (21 - 3) x (7 + 2) = (12 - 4),
- ,
what operation should y...
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