September 2018 1 22 Report
A. 12a+3b dan -4a+11b+6
b. 2x-3y+8 dan 5y+6y-1
c. 7xy-2y-3z dan 2x-5y-6z
d. 6ax-7ay+10by dan 7ax+8ay-10by
tlong ya !! krna jwaban itu sngat berarti bagi sya!

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