pomocy
rozwiąż układ równań
2x+y=1
3x-y=4
dodaje stronami:
2x+3x + y-y = 5
5x = 5 /:5
x = 1
2x+ y = 1
2*1 + y = 1
y = 1-2
y=-1
odp:
x=1
5x=5/5
2*1+y=1
2+y=1
y=1-2
spr. 2+ (-1)= 1
3*1 -(-1)= 4
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x+y=1
3x-y=4
dodaje stronami:
2x+3x + y-y = 5
5x = 5 /:5
x = 1
2x+ y = 1
2*1 + y = 1
y = 1-2
y=-1
odp:
x=1
y=-1
5x=5/5
x=1
2*1+y=1
2+y=1
y=1-2
y=-1
spr. 2+ (-1)= 1
3*1 -(-1)= 4