Răspuns :
a) 9000 - x + 420 = 1000
9000-1000+420=x
x= 8420
b) 2500 -(y-410)=1990
2500-y +410=1990
2500-1990+410= y
y= 920
9000-1000+420=x
x= 8420
b) 2500 -(y-410)=1990
2500-y +410=1990
2500-1990+410= y
y= 920
a) 9000 - x + 420 = 1000
9000-1000+420=x
x= 8420
b) 2500 -(y-410)=1990
2500-y +410=1990
2500-1990+410= y
y= 920
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