Rozwiąż równania: a) 2x-5=17 b) 4x-9=x+12 c)5x-12=3x+4 d) 6x-18=2x+2 Tylko proszę krok po kroku ;)
a) 2x - 5 = 17 /+5
2x = 22 / :2
x=11
b) 4x - 9 = x + 12 /-x
3x - 9 = 12 /+9
3x = 21 /:3
x = 7
c) 5x - 12 = 3x + 4 /-3x
2x - 12 = 4 /+12
2x = 16 / :2
x = 8
d) 6x - 18 = 2x + 2 /-2x
4x - 18 = 2 /+18
4x = 20 /:4
x = 5
a)2x-5=17
2x=17+5
2x=22 //:2
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
Mam nadzieję, że pomogłam.
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a) 2x - 5 = 17 /+5
2x = 22 / :2
x=11
b) 4x - 9 = x + 12 /-x
3x - 9 = 12 /+9
3x = 21 /:3
x = 7
c) 5x - 12 = 3x + 4 /-3x
2x - 12 = 4 /+12
2x = 16 / :2
x = 8
d) 6x - 18 = 2x + 2 /-2x
4x - 18 = 2 /+18
4x = 20 /:4
x = 5
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
Mam nadzieję, że pomogłam.