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Vivienfrumusik1
a fost răspuns

Ma ajutati va rog sa gasex X ul.....
X•103=1751
2•x+5=23
4•x:10=1000
2•x•5=100
5•(6+2•x)=60
(13+x):15=15
72:(x-2)=9
1157:x=13
(X+17)•4=63+17

Răspuns :

Deva
Xx103=1751,x=1751:103=17
2x+5=23,2x=18,x=9
4x:10=1000,4x=10000,x=2500
2xXx5=100,10x=100,x=10
5x(6+2x)=60,30+10x=60,10x=30,x=3
(13+x):15=15,13+x=225,x=212
72:(x-2)=9,x-2=8,x=10
1157:x=13,x=1157:13=89
(x+17)x4=63+17=80,4x+68=80,4x=12,x=3

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