Wraz z obliczeniami!!
a) {x+y=0
{x-y=10
b){8x-6y=10
{7x+y=5
c){12p-7r=-16
{p=3r=-69
d){11k+17l=45
{13k+l=15
e){8a+9b=36
{a-16b=210
f){6a-21b=228
{a-12b=21
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a) {x+y=0
{x-y=10
2x=10
x=5
5+y=0
y=-5
b){8x-6y=10
{7x+y=5 /*6
8x-6y=10
42x+6y=30
50x=40
x=0,8
7*0,8+y=5
5,6+y=5
y=-0,6
c){12p-7r=-16
{p=3r=-69
coś tutaj źle zostało przepisane:(
d){11k+17l=45
{13k+l=15 /*(-17)
11k+17l=45
-221k-17l=-255
210k=210
k=1
11+17l=45
17l=34
l=2
e){8a+9b=36
{a-16b=210 /*(-8)
8a+9b=36
-8a+128b=-1680
137b=-1644
b=-12
8a-108=36
8a=144
a=18
f){6a-21b=228
{a-12b=21 /*(-6)
6a-21b=228
-6a+72b=-126
51b=102
b=2
6a-42=228
6a=270
a=45