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druga: y MB
x + y = 240
x - y = 30
Po zsumowaniu stronami:
2x = 270
x = 135
y = 240 - x = 240 - 135 = 105
Jedna gra ma 135MB a druga 105MB
y - druga gra
x+y=240
x+30=y
x+x+30=240
x+30=y
2x+30=240
x+30=y
2x=240-30
x+30=y
2x=210/:2
x+30=y
x=105
x+30=y
x=105
105+30=y
x=105 Mb
y=135Mb