April 2019 1 22 Report
Sederhanakan.
1. (4a+5b+2) + (2a-3b-4)
2.(6a+7b-5) + (8a-2b+6)
3.(8x-2y+7) + (2x-8y-7)
4.(7x-6y) + (4x-y+6)
5.(5x-6y+6) + (x-y)
Dijawab yaaak.

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