Rozwiąż zadania: a) 3x-1+5x b) y-3=9-y c) 1/2z+6=z-1 PROSZĘ O DOKŁADNE OBLICZENIA
a) 3x-1+5x=0
8x=1/:8
x=1/8
b) y-3=9-y
2y=12/:2
y=6
c) 1/2z+6=z-1
1/2z-z=-1-6
-1/2z=-7 /:(-1/2)
z=-7/1*(-2/1)
z=14
3x-1+5x=8x-1 , y-3=9-y y+y=9+3 2y= 12:2 y=6 , 1/2z+6=z-1 1/2z-z=-1-6 -1/2z=-7;(-1/2) z=3,5
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a) 3x-1+5x=0
8x=1/:8
x=1/8
b) y-3=9-y
2y=12/:2
y=6
c) 1/2z+6=z-1
1/2z-z=-1-6
-1/2z=-7 /:(-1/2)
z=-7/1*(-2/1)
z=14
3x-1+5x=8x-1 , y-3=9-y y+y=9+3 2y= 12:2 y=6 , 1/2z+6=z-1 1/2z-z=-1-6 -1/2z=-7;(-1/2) z=3,5