Rozwiąż układ równań metodą podstawiania.
6x - 4y = 4
-7x + 3y = -8
4y=6x-4 /:4
-7x+3y=-8
y=1,5x-1
-7x+3*(1,5x-1) =-8
-7x+4,5x-3=-8
-2,5x=5 /:-2,5
x=-2
y=1,5*(-2)-1
y=-3-1
y=-4
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4y=6x-4 /:4
-7x+3y=-8
y=1,5x-1
-7x+3*(1,5x-1) =-8
-7x+4,5x-3=-8
-2,5x=5 /:-2,5
x=-2
y=1,5x-1
y=1,5*(-2)-1
y=-3-1
y=-4