Rozwiąż układ równań metodą podstawiania. JEDEN PRZYKŁAD :))
3x+4y=2
5x+7y=1
x= 2/3-4/3y
5(2/3-4/3y)+7y=1
10/3-20/3y+7y=1
1/3y=-7/3
y=-7
x= 2/3 - (-28/3) = 30/3 = 10
spr
3*10+4*-7 = 30-28 =2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
3x+4y=2
5x+7y=1
x= 2/3-4/3y
5x+7y=1
5(2/3-4/3y)+7y=1
10/3-20/3y+7y=1
1/3y=-7/3
y=-7
x= 2/3 - (-28/3) = 30/3 = 10
spr
3*10+4*-7 = 30-28 =2