Rozwiąż układ równań.x-y/3 - x+y/2 =-1/2 x+y=3Potrzebuje tego metodą podstawiania, wynik to x=3 y=0
{(x-y)/3 - (x+y)/2 =-1/2 |*6{x+y=3
---
{2(x-y)-3(x+y)=-3
{x=3-y
{2x-2y-3x-3y=-3
{-x-5y=-3
{-(3-y)-5y=-3
{-3+y-5y=-3
{-4y=0
{y=0
{x=3
{ (x-y)/3 - (x+y)/2 = -1/2 /*6
{ x+y=3
{2(x-y) -3(x+y) = -3
{y=3-x
{2x-2y-3x-3y = -3
{-x-5y = -3
-x-5(3-x) = -3
-x-15+5x = -3
4x = 12 /:4
x=3
y=3-x
y=3-3
y=0
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{(x-y)/3 - (x+y)/2 =-1/2 |*6
{x+y=3
---
{2(x-y)-3(x+y)=-3
{x=3-y
---
{2x-2y-3x-3y=-3
{x=3-y
---
{-x-5y=-3
{x=3-y
---
{-(3-y)-5y=-3
{x=3-y
---
{-3+y-5y=-3
{x=3-y
---
{-4y=0
{x=3-y
---
{y=0
{x=3
{ (x-y)/3 - (x+y)/2 = -1/2 /*6
{ x+y=3
{2(x-y) -3(x+y) = -3
{y=3-x
{2x-2y-3x-3y = -3
{y=3-x
{-x-5y = -3
{y=3-x
-x-5(3-x) = -3
-x-15+5x = -3
4x = 12 /:4
x=3
y=3-x
y=3-3
y=0
{x=3
{y=0