November 2018 2 13 Report

Oblicz:

a) -7*(9x-2y)-4(8x+6y)=

b) -(19x-4y)*(-2)-(6x+4y)*5=

c) (14x-21):7-(32x-40):8=

d) -7(-4a-7)-24a=

Proszę o dokładne obliczenia, a nie same wyniki!


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