Rozwiąż układy równań. Z góry dziękuję.
{1/3(x+1)-1/2(y-1)=0
{3/4(x+2)-1/2(y+1=1
{3/2(x-3)+2/3(y-1)=5
{3/4(x-1)+4/3(y-4)=3
{2(x-2)+4
(y-3)=-2 {x-y=-2
{2x+3y=15
{3(x-2)-(4-y)=2
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d)
{2x+3y=15
{3(x-2)-(4-y)=2
2x+3y=15
3x-6-4+y=2
3x+3y=15/:(-3)
3x+y=12
-x-y=-5
3x+y=12
2x=6/:2
x=3
-3-y=-5
-y=-2/:(-1)
y=2
x=3
sory tamtych nie dam rady