Răspuns :

Dariusbarbuid

a) 3x = 6

x = 6 : 3 = 2

b) 5 + x = 8

x = 8 - 5 = 3

c) 2x + 10 = x + 20

2x - x = 20 - 10

x = 10

Salut!

[tex]a)3x = 6 \\ = > 6 \div 3 = 2 \\ \\ [/tex]

[tex]b)5 + x = 8 \\ x = 8 - 5 \\ x = 3[/tex]

[tex]c)2x + 10 = x + 20 \\ 2x - x = 20 - 10 \\ x = 10[/tex]

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