👤
a fost răspuns

3(2x-4)+x=27
3+2(x-1)=17
7+2x+6x=63
5(x+3)+2(x+3)=56

Răspuns :

Nitugheorghe57
a) 3(2x-4)+x=27⇒6x-12+x=27⇒7x=27+12⇒7x=39⇒x=39|7
b)3+2(x-1)=17⇒3+2x-2=17⇒2x=17-1⇒2x=16⇒x=16|2⇒x=8
7+2x+6x=63⇒8x=63-7⇒8x=56⇒x=56|8⇒x=7
5(x+3)+2(x+3)=56⇒5x+15+2x+6=56⇒7x+21=56⇒7x=56-21⇒7x=35⇒x=35|7⇒x=5
succes

Alte intrebari