September 2018 2 17 Report

3. Uprość podaną wartość, redukując wyrażenia podobne:
a) 3(x-2y) + 2(x+3y)
b) 3(x-y+7) - 4(2x+5) + 2(4-6y)
c) 2(a-3b+4c) - (3a+7,5b-4 2/3c)
d) 2(3a-7b) - 3(4b+5c) - 7(4z+c)

(2/3-ułamek)


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