Rowiąż układy równań (dowolną metoda):
b) x-y=2
½x-1=¼y
d) 4x+3y=54
⅓x= 4(1+⅛y)
LUDZIE SZYBKO!
b)
x=2+y
2x-4=y
2(2+y)-4=y
4+2y-4=y
y=0
x=2
d)
4x+3y=54
x=12(1+1/8y)
48(1+1/8y)+3y=54
x=12+12/8y
48+48/8y+3y=54
x=12+3/2y
9y=54-48
9y=6 y=2/3
x=12+3/2*2/3=12+1=13
x-y=2
wszystko razy (-2)
x-0=2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b)
x=2+y
2x-4=y
x=2+y
2(2+y)-4=y
x=2+y
4+2y-4=y
x=2+y
y=0
x=2
d)
4x+3y=54
x=12(1+1/8y)
48(1+1/8y)+3y=54
x=12+12/8y
48+48/8y+3y=54
x=12+3/2y
9y=54-48
x=12+3/2y
9y=6 y=2/3
x=12+3/2*2/3=12+1=13
b)
x-y=2
wszystko razy (-2)
x-y=2
y=0
x-y=2
x-0=2
x=2
d)