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rezolva ecuatia 2*(x+5)-7=19 coronita

Răspuns :

2*(x+5)-7=19
2x+10-7=19
2x+3=19
2x=19-3
2x=16
x=8
[tex]2* (x+5) - 7 =19 \\ 2x +10 - 7 =19 =\ \textgreater \ 2x + 3 =19 \\ 2x = 19-3 =\ \textgreater \ 2x = 16 =\ \textgreater \ x =16 : 2 \\ =\ \textgreater \ x = 8[/tex]