rozwiąż równania:
5y-3,8=-21,8
9x-8=6x+10
18+5x=32
y-3=9-y
3x-1=5x
5y=3,8-21,8
5y=-18/:5
y=-18/5=-3 3/5
9x-6x=8+10
3x=18/:3
x=6
5x=-18+32
5x=14/:5
x=14/5=2 4/5
y+y=3+9
2y=12/:2
y=6
3x-5x=1
-2x=1/:(-2)
x=-1/2
a)5y-3,8=-21,85y = -21,8 + 3,85y = -18 /:5y = -3,6b)9x-8=6x+109x - 6x = 10 + 83x = 18 /:3x = 6c)18+5x=325x = 32 - 185x = 14 /:5x = 2,8d)y-3=9-yy + y = 9 + 32y = 12 /:2y = 6e)3x-1=5x3x - 5x = 1 -2x = 1 /:(-2)x = -0,5
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5y-3,8=-21,8
5y=3,8-21,8
5y=-18/:5
y=-18/5=-3 3/5
9x-8=6x+10
9x-6x=8+10
3x=18/:3
x=6
18+5x=32
5x=-18+32
5x=14/:5
x=14/5=2 4/5
y-3=9-y
y+y=3+9
2y=12/:2
y=6
3x-1=5x
3x-5x=1
-2x=1/:(-2)
x=-1/2
a)
5y-3,8=-21,8
5y = -21,8 + 3,8
5y = -18 /:5
y = -3,6
b)
9x-8=6x+10
9x - 6x = 10 + 8
3x = 18 /:3
x = 6
c)
18+5x=32
5x = 32 - 18
5x = 14 /:5
x = 2,8
d)
y-3=9-y
y + y = 9 + 3
2y = 12 /:2
y = 6
e)
3x-1=5x
3x - 5x = 1
-2x = 1 /:(-2)
x = -0,5