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06-02-2018
Mathematics

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(H+k)-(j-2k) if h= -3 j= -2 and k= -9

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06-02-2018

if you change all the variables to the given valuables, the new equation would be (-3 + -9) - (-2 - 2 x -9)

Solve what's in the parenthesis first. -3 + -9 is -12. -2 x -9 is -18, and -2 - -18 is 16. Then you do -12 - 16 and you get -28

-28 is the answer :D

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