Odpowiedź:
1. a) -5(x-2y)= -5x+10y
2. a) 5-(2-7x)= 5+2+7x=7+7x
b) 8+3a+2(5-a)=8+3a+10-2a= 18+a
c) -2(c+6)+4(7-b-3c)= -2c-12+28-4b-12c= -14c+16-4b
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Odpowiedź:
1. a) -5(x-2y)= -5x+10y
2. a) 5-(2-7x)= 5+2+7x=7+7x
b) 8+3a+2(5-a)=8+3a+10-2a= 18+a
c) -2(c+6)+4(7-b-3c)= -2c-12+28-4b-12c= -14c+16-4b