d) { 1/2x(to jest ułamek)-2y=14
2x+5y=6
e) { 1/2x-3/4y=0
2/3x+1(całość)1/2=9
f) {3x+4y = 12/3
6x+3y=11/2
d) { 1/2-2y=14/x5 e) { 1/2x-3/4y=0 f){3x+4y=12/3/x(-2)
2x+5y=6 /x2 2/3x+1 1/2=9 6x+3y=11/2
{ 5/2x-10y=70 { 1/2x-3/4y=0 {-6x-8y=24/6
4x+10y=12 2/3x=9-1,5 6x+3y=11/2
6,5x=82/:6,5 { 1/2x-3/4y=0 -5y=9/6 /(-5)
x=12,6 2/3x=7,5/:2/3 y=3/10=0,3
{2x+5y=6 { 1/2x-3/4=0 { 3x+4y=12/3
x=12,6 x=9 i 3/4 y=0,3
{2 x 12,6 + 5y=6 {1/2 x 9 3/4-3/4y=0 {3x+4 x 0,3=12/3
x=12,6 x= 9 3/4 y=0,3
{ 25,2+5y=6 { 39/8-3/4y=0 /: 39/8 {3x+12/10=12/3
x=12,6 x=9 3/4 y=0,3
{ 5y=6-25,2 { 4y=0/:4 { 3x=12/3-12/10
{ 5y=-19,2/:5 {y=0 {3x=9/30 / :3
{ y= -3,84 układ nieoznaczony {x=0,1
x=12,6 y=0,3
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d) { 1/2-2y=14/x5 e) { 1/2x-3/4y=0 f){3x+4y=12/3/x(-2)
2x+5y=6 /x2 2/3x+1 1/2=9 6x+3y=11/2
{ 5/2x-10y=70 { 1/2x-3/4y=0 {-6x-8y=24/6
4x+10y=12 2/3x=9-1,5 6x+3y=11/2
6,5x=82/:6,5 { 1/2x-3/4y=0 -5y=9/6 /(-5)
x=12,6 2/3x=7,5/:2/3 y=3/10=0,3
{2x+5y=6 { 1/2x-3/4=0 { 3x+4y=12/3
x=12,6 x=9 i 3/4 y=0,3
{2 x 12,6 + 5y=6 {1/2 x 9 3/4-3/4y=0 {3x+4 x 0,3=12/3
x=12,6 x= 9 3/4 y=0,3
{ 25,2+5y=6 { 39/8-3/4y=0 /: 39/8 {3x+12/10=12/3
x=12,6 x=9 3/4 y=0,3
{ 5y=6-25,2 { 4y=0/:4 { 3x=12/3-12/10
x=12,6 x=9 3/4 y=0,3
{ 5y=-19,2/:5 {y=0 {3x=9/30 / :3
x=12,6 x=9 3/4 y=0,3
{ y= -3,84 układ nieoznaczony {x=0,1
x=12,6 y=0,3