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Mathematics, 19.02.2021 19:20 hhvgbv7147

Use your knowledge about parentheses and substitution to solve the following: 1. r(s)(t) =

2. (r)(s)(t)(x)(y) =

3. (7x + 2Y) =

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Use your knowledge about parentheses and substitution to solve the following: 1. r(s)(t) =

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