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26-02-2015
Mathematics

Answered

Help me solve these two problems pls and pls explain how you solved it

1) -x+6>-(2x+4)
2) 9z+5 over 4 plus 18<26

Answer :

apologiabiology apologiabiology

26-02-2015

-x+6>-(2x+4)
first distirubte
-x+6>-2x-4
add 1x to both sdies
6>-x-4
add 4 to both sdies
10>-x
multily -1 and don't forget to switch > to <
10<x

(9z+5)/4+18<26
multply both sdies by 4 to get rid of fraction
9z+5+72<104
add like terms
9z+77<104
subtract 77
9z<27
divide both sdies by 9
z<3

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