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2 • ( 3x + 5 ) + 5 =51 cum se rezolva

Răspuns :

2*(3x+5)+5=51
6x+10+5=51
6x+15=51
6x=36
x=6
Coronita?
2×(3x+5)+5=51-5
2×(3x+5)=46:2
3x+5=23-5
3x=18:3
x=6