Rozwiąż równanie.
a) 2x-5=17 b) 4x-9=x+12 c) 5x-12=3x+4 d) 6x-18=2x+2
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a)
2x-5=17
2x= 17+5
2x= 22 /: 2
x= 11
b)
4x-9=x+12
4x-x = 12+9
3x = 21 /:3
x=7
c)
5x-12=3x+4
5x-3x = 4+12
2x = 16 /:2
x=8
d)
6x-18=2x+2
6x-2x = 2+18
4x = 20/:4
x=5
a) 2x-5=17
2x=17+5
2x=22 /:2
x=22/2
x=11
b) 4x-9=x+12
4x-x=12+9
3x=21 /:3
x=21/3
c)5x-12=3x+4
5x-3x=4+12
2x=16 /:2
x=16/2
d)6x-18=2x+2
6x -2x=2+18
4x = 20 /:4
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a)
2x-5=17
2x= 17+5
2x= 22 /: 2
x= 11
b)
4x-9=x+12
4x-x = 12+9
3x = 21 /:3
x=7
c)
5x-12=3x+4
5x-3x = 4+12
2x = 16 /:2
x=8
d)
6x-18=2x+2
6x-2x = 2+18
4x = 20/:4
x=5
a) 2x-5=17
2x=17+5
2x=22 /:2
x=22/2
x=11
b) 4x-9=x+12
4x-x=12+9
3x=21 /:3
x=21/3
x=7
c)5x-12=3x+4
5x-3x=4+12
2x=16 /:2
x=16/2
x=8
d)6x-18=2x+2
6x -2x=2+18
4x = 20 /:4
x=5