September 2018 1 15 Report

Prosze o pomoc! :D Układy równań!!

1) 2(x+y)-(x-y)=4

3(x-2y)+4(x+y)=5

2) 2/3x +1/2 y = 5

1/3x - 1/5 y =-1

3) x+1 (podzielić na dwa!) - y =-2

x- y+1 (podzielić na 5!!) =2

Z góry dziękuje ;*


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