September 2018 1 13 Report

Zapisz w jak najprostszej postaci:

a) -4(2x+0,5)

b) 3( x^2-2)- (5-6x^2)

c) -3(1-2y)+ \frac{1}{2}(6-12y)

d) - ( x-2)-4 (  \frac{1}{2} - x)

e) 4*  \frac{x-7}{2}-6*  \frac{3-x}{3}

f) -  \frac {6a+4}{2} -  \frac {9a-3} {3}

I proszę o wytłumaczenie ! :)


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