2x+y=0
3x+2y=1 30% liczby 2jedna trzecia wyznacz b P=(a+b)*h:2
y=-2x+0
3x+2* (-2x)=1
3x-4x=1
-x=1
x=-1
y=(-2)*(-1)
y=2
30%* 2jedna trzecia= 0,3 *2i 1/3= 0,7
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y=-2x+0
3x+2* (-2x)=1
3x-4x=1
-x=1
x=-1
y=(-2)*(-1)
y=2
x=-1
y=2
30%* 2jedna trzecia= 0,3 *2i 1/3= 0,7