Rozwiąż równanie :
2x+9y=6
4x+6y=6
Dam naj
2x+9y=6 /*(-2)
-4x+(-18y)=-12
-12y=-6 /:(-12)
y=0,5
2x+9*0,5=6
2x + 4,5=6
2x=6-4,5
2x=1,5/:2
x=0,75
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2x+9y=6 /*(-2)
4x+6y=6
-4x+(-18y)=-12
4x+6y=6
-12y=-6 /:(-12)
y=0,5
2x+9y=6
y=0,5
2x+9*0,5=6
y=0,5
2x + 4,5=6
y=0,5
2x=6-4,5
y=0,5
2x=1,5/:2
y=0,5
x=0,75
y=0,5