Rozwiążcie równania
1 2x+3=7
2 3x-1=2x+5
3 8[x+2]=20.Potrzebuję na dzisiaj
2x+3=7
2x=7-3
2x=4/:2
x=2
3x-1=2x+5
3x-2x=5+1
x=6
8(x+2)=20
8x+16=20
8x=20-16
8x=4/:8
x=0.5
zad. 1
2x = 7-3
2x = 4 /:2
x = 2
zad. 2
3x - 1 = 2x + 5
3x-2x = 5+1
x = 6
zad. 3
8x = 20-16
8x = 4 /:8
x = 1/2
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2x+3=7
2x=7-3
2x=4/:2
x=2
3x-1=2x+5
3x-2x=5+1
x=6
8(x+2)=20
8x+16=20
8x=20-16
8x=4/:8
x=0.5
zad. 1
2x+3=7
2x = 7-3
2x = 4 /:2
x = 2
zad. 2
3x - 1 = 2x + 5
3x-2x = 5+1
x = 6
zad. 3
8(x+2)=20
8x+16=20
8x = 20-16
8x = 4 /:8
x = 1/2