October 2018 1 25 Report

Roziąż układy równań metodą podstawiania.

a) { x+3y=3

{ x-y=5

b) { 2x-y=10

{ x+5y=-17

c) { 3m+n=9

{ 2m-5n=-11

d) { 4a-2=b

{ 3a+7b=1,5

e) { 5x=4-2y

{ 4x+y=3

f) { 6x-3y=9

{ x+5y=-9,5


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