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23-08-2017
Mathematics

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Write and simplify an expression for the perimeter of the triangle or rectangle

Write and simplify an expression for the perimeter of the triangle or rectangle class=

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meloan2211 meloan2211

23-08-2017

Q21)Answer: 4c - 1
2c + (c - 6) + (c + 5)
= 2c + c - 6 + c + 5
= 4c - 1

Q22) Answer: 15f + 7
(6f - 3) + (5f + 14) + [4(f - 1)]
= 6f - 3 + 5f + 14 + (4f - 4)
= 6f - 3 + 5f + 14 + 4f - 4
= 15f + 7

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