Rozwiąż układy równań:a) 3x-1/5 + 2y-3 / 4 = 3(y+1) / 2 x+y / 4 - 3y-1 / 2 = x - 6y / 4
(3x-1)/5+(2y-3)/4=3(y+1)/2
(x+y)/4-(3y-1)/2=(x-6y)/4
4(3x-1)+5(2y-3)=30(y+1)
x+y-2(3y-1)=x-6y
12x-4+10y-15=30y+30
x+y-6y+2=x-6y
12x-20y=49
y=-2
12x+40=49
12x=9
x=0,75
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(3x-1)/5+(2y-3)/4=3(y+1)/2
(x+y)/4-(3y-1)/2=(x-6y)/4
4(3x-1)+5(2y-3)=30(y+1)
x+y-2(3y-1)=x-6y
12x-4+10y-15=30y+30
x+y-6y+2=x-6y
12x-20y=49
y=-2
12x+40=49
y=-2
12x=9
y=-2
x=0,75
y=-2