Jak te równanie rozwiązać:
2x + y = 6
x/4 - y/5 = 4
/ to kreska ułamkowa
5x-4(6-2x)= 80
5x-24+8x= 80
13x= 104/:13
x= 8
y=6-2•8
y= 6-16
y= -10
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5x-4(6-2x)= 80
5x-24+8x= 80
13x= 104/:13
x= 8
y=6-2•8
y= 6-16
y= -10