rozwiaz ukl. metoda podstawiania
a) {4x+3y=26
{x+y=8
b) {3x+4y=19
{x+2=7
a)
4x +3y =26
x+y=8
4x+3y =26
x = 8-y
4(8-y) +3y =26
32 -4y +3y =26
-y =-6 ;(-1)
y=6
x=8-6=2
{x=2
b)
3x+4y =19
x = 5
3*5 + 4y =19
4y = 19 -15
4y = 4 /:4
y=1
{x=5
{y=1
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a)
4x +3y =26
x+y=8
4x+3y =26
x = 8-y
4(8-y) +3y =26
32 -4y +3y =26
-y =-6 ;(-1)
y=6
x=8-6=2
{x=2
y=6
b)
3x+4y =19
x = 5
3*5 + 4y =19
4y = 19 -15
4y = 4 /:4
y=1
{x=5
{y=1