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16-09-2017
Mathematics

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Expresion 2 5+4X2+6-2X2-1 Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a value of 19 5+4X2+6-2X2-1

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16-09-2017

(5+4+6-2)×2×2-1
(9-4)×2×2-1
5×2×2--1
10×2-1
20-1
19

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