PROSZE....to tylko 5 zadan!
UWAGA:proszę abyście zrobili tymi dwoma metodami czyli przeciwnych współczynników i metoda podstawiania... w załaczniku...
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5x/2-y/5=-4/*10
2x/3+y/6=-2 1/6 /*6
25x-2y=-40
4x+y=-13/*2
25x-2y=-40
8x+2y=-26
33x=-66
x=-2
-8+y=-13
y=5
x=-2
7x+8y=3/*5
8x-5y=-39/*8
35x+40y=15
64x-40y=-312
99x=-297
x=-3
-21+8y=3
8y=24
y=3
x=-3
4x+3y=-5
-x+2y=4
-x=-2y+4/*(-1)
4x+3y=-5
x=2y-4
4(2y-4)+3y=-5
x=2y-4
8y-16+3y=-5
x=2y-4
11y=11
y=1
x=-2
-2x-3y=-2/*(-1)
x-y=6
x=6+y
2x+3y=2
x=6+y
2(6+y)+3y=2
x=6+y
12+2y+3y=2
x=6+y
5y=-10
y=-2
x=4
-2a+3b=0
3a+0,5b=-5
-2a+3b=0
3a+½b=-5/*2
-2a+3b=0
6a+b=-10
b=-10-6a
-2a+3(-10-6a)=0
b=-10-6a
-2a-30-18a=0
b=-10-6a
-20a=30
b=-10-6a
a=1½
b=-10-6*3/2
a=1½
a=1½
b=-1