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2014-10-31T20:17:34+02:00
A) 5x=8
x=8 supra 5
x= 1,6
b)-5x=3+(-2)la a 2
-5x=3+4
-5x=7
x=7 supra-5
x=-1,4
c)x(9-4)=7-2
5x=5
x=5 supra 5
x=1
d)17x-4x=6-(-20)
13x=26

x=26supra 13
x=2


1 5 1
2014-10-31T20:19:54+02:00
A)5x=8
x=8/5
x=1,6
b)-5x=3+(-2)la patrat
-5x=3+4
-5x=7
x=-7/5
x=-1,4
c)x(9-4)=7+2
5x=9
x=9/5
x=1,8
d)17x-4x=6-(-20)
13x=6+20
13x=26
x=26/13
x=2