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-x+3/5y=0 //*9
9x-4y=98
-9x+5,4y=0
1,4y=98//1,4
y=70
9x-4*70=98
9x-280=98
9x=98-280
9x=-182//9
x=20
{-x+3/5y=0/*5
{9x- 4y=98/*3
{-5x+3y=0/*4
{27x-12y=294
{-20x+12y=0
----------------
7x=294/:7
x=42
-5x+3y=0 ; x=42
-5*42+3y= 0
-210 + 3y= 0
3y=210/:3
y=70
{x=42
{y=70
{5(x+2)=3(y-1)+15
{2(x+3)+7=3(y+6)-6
{5x+10=3y-3+15
{2x+6+7=3y+18-6
{5x-3y=-3+15-10
{2x-3y=18-6-6-7
{5x-3y=2
{2x-3y=-1/*(-1)
{5x-3y=2
{-2x+3y=1
---------------
3x=3/:3
x=1
-2x+3y=13 ; x=1
-2*1+3y=13
-2+3y=13
3y=13+2
3y=15/:3
y=5
{x=1
{y=5
Mam nadzieję ze dobrze :)
-x+3/5y=0 /*9
9x-4y=98
-9x+27/5y=0
7/5y=98
y=70
9x-4*70=98
9x-280=98
9x=378
x=42
y=70
x=42
5(x+2)=3(y-1)+15
2(x+3)+7=3(y+6)-6
5x+10=3y-3+15
2x+6+7=3y+6-6
5x-3y=2
2x-3y=-13 /*(-1)
5x-3y=2
-2x+3y=13
3x=15
x=5
5*5-3y=2
25-3y=2
-3y=-23
y=23/3
y=7i2/3
x=5
y=7 i 2/3