Rozwiąż równania :
a )4e-8=9e+7
e =
b ) 6x-1=x+3
x=
c) 3(k-1)=2k+6
k =
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a )
4e-8=9e+7
4e-9e=7+8
-5e=15 /:(-5)
e=-3
b )
6x-1=x+3
6x-x=3+1
5x=4 /:5
x=4/5
c)
3(k-1)=2k+6
3k-3=2k+6
3k-2k=6+3
k=9
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a )
4e-8=9e+7
4e-9e=7+8
-5e=15 /:(-5)
e=-3
b )
6x-1=x+3
6x-x=3+1
5x=4 /:5
x=4/5
c)
3(k-1)=2k+6
3k-3=2k+6
3k-2k=6+3
k=9
4e-8= 9e+7 /+8
4e = 9e +15 / -9e
-5e = 15 /:5
-e = 3
e= -3
6x-1=x+3 /-x
5x-1 = 3 /+1
5x = 4 /5
x = 0,8
3( k-1 ) = 2k +6
3k- 3 = 2k +6 /-2k
k-3 = 6 /+3
k = 9