Z podanych wzorów wyznacz x : 2x+y=k 3(x-2)=12 0,5(k-x)=p 3x+y+5x=2
2x+y=k
2x=k-y /:2
x=(k-y)/2
3(x-2)=12
3x-6=12
3x=12+6
3x=18 /:3
x=6
0,5(k-x)=p
0,5k-0,5x=p /*2
k-x=2p
-x=2p-k
x=k-2p
3x+y+5x=2
8x=2-y /8
x=(2-y)/8
kreska "/" to jest ułamek
2x+y=k / -y2x=k-y /:2x=k-y/2 3x-6=12 /+6
3x=18 /:3x= 6 3x+y+5x=2 /-y8x=2-y / :8 x=2-y/80,5k-0,5x=p /-0,5k-0.5x=p-0,5k /* -2x=-2p+k
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2x+y=k
2x=k-y /:2
x=(k-y)/2
3(x-2)=12
3x-6=12
3x=12+6
3x=18 /:3
x=6
0,5(k-x)=p
0,5k-0,5x=p /*2
k-x=2p
-x=2p-k
x=k-2p
3x+y+5x=2
8x=2-y /8
x=(2-y)/8
kreska "/" to jest ułamek
2x+y=k / -y
2x=k-y /:2
x=k-y/2
3x-6=12 /+6
3x=12+6
3x=18 /:3
x= 6
3x+y+5x=2 /-y
8x=2-y / :8
x=2-y/8
0,5k-0,5x=p /-0,5k
-0.5x=p-0,5k /* -2
x=-2p+k