kklongkiwi kklongkiwi

04-12-2017
Mathematics

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The perimeter of a triangle is 19z-7. One side is 5z-9 and one side is 8z+3. What is the remaining side ?

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choixongdong choixongdong

04-12-2017

19z-7 - ( 5z-9 + 8z+3)
= 19z - 7 - (13z - 6)
= 19z - 7 - 13z + 6
= 6z - 1

answer
remaining side = 6z - 1

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