September 2018 2 12 Report

Doprowadź wyrażenia do najprostszej postaci i oblicz jego wartości.

a)2x - 5y +3x +4y - x

dla x=2 , y= -1

b)3x + 5y - 1 - 2x - y

dla x=3 , y=\frac{1}{2}

c)3a + 2b- 2a-2b

dla a=3 , b=6


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