September 2018 3 35 Report
1 przekształć wyrażenia , opuszczając nawiasy.
-(4x+7)
-(6y-5)
-(4a-2b-c-9)
2 wykonaj dzielenie
(4x+6):2
(6y-9):3
(8x-5):(4)
(-2,7- 0,9 y):(3)
(2i1/2x-1/4y):(1/4)
(x-4y+2z):(-1)
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