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x-3y/4x-7y=-1/*4x-7y
6x+9-15y+10=22
x-3y=-4x+7y/+3y
6x-15y+19=22/-19
x=-4x+10y/+4y
6x-15y=3
5x=10y/:5
6x-15y=3
x=2y
6*2y-15y=3
x=2y
12y-15y=3
x=2y
-3y=3/:(-3)
x=2y
y=-1
x=2*(-1)
x=-2
y=-1
x-3y/4x-7y=-1
6x+9-15y+10=22
x-3y/4x-7y=-1
6x-15y=22-10+9
x-3y/4x-7y=-1
6x-15y=3
x-3y/4x-7y=-1/*4x-7y
6x-15y=3
x=-4x+7y+3y
6x-15y=3
5x=10y/:5
6x-15y=3
x=2y
6*2y-15y=3
x=2y
12y-15y=3
x=2y
-3y=3/:(-3)
x=2y
y=-1
x=2*(-1)
y=-1
x=-2
Wydaje mi się, że dobrze odczytałam zadanie ( nie do końca byłam pewna jak dzielić przykład " x-3y/4x-7y = -1 "