Rozwiąż równania:a) 2(x+1)=4b) 4=2(x-1)
c) 3(x-2)=x Za najlepszą odpowiedz daje NAJ.
a) 2(x+1)=4
2x+2=4
2x = 2 /:2
x= 1b) 4=2(x-1)4 = 2x-2
-2x=-6 /: (-2)
x = 3c) 3(x-2)=x
3x-6 = x
2x = 6 /: 2
x = 3
2x+2=4 /-2
2x=2 /:2
x=1
b) 4=2(x-1)
4= 2x-2 /+2
6=2x
x=3
c) 3(x-2)=x
3x-6=x /-3x
-6= - 2x / :(-1)
2x=6 /:2
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a) 2(x+1)=4
2x+2=4
2x = 2 /:2
x= 1
b) 4=2(x-1)
4 = 2x-2
-2x=-6 /: (-2)
x = 3
c) 3(x-2)=x
3x-6 = x
2x = 6 /: 2
x = 3
a) 2(x+1)=4
2x+2=4 /-2
2x=2 /:2
x=1
b) 4=2(x-1)
4= 2x-2 /+2
6=2x
x=3
c) 3(x-2)=x
3x-6=x /-3x
-6= - 2x / :(-1)
2x=6 /:2
x=3