August 2018 1 13 Report
Rozwiąż podane układy równań metodą podstawiania.

a) {x+2y=-2
{2x-y=1

b) {x+4y=-2
{3x-8y10

c) {x-2y=3
{-2x+y=0

d) {2x+y=9
{5x-4y=3

e) {3x-2y=5
{2x-y=4

f) {2x+9y=-9
{-3x+3y=8

g) {2x+3y=4
{8x-5y=-1

h) {x-y=0
{x+y+z=4
{x+2y+3z=9
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