👤
a fost răspuns

100(2x + 1) + 50(3x-1)=400
PS:"x" se considera cifra nu semnul inmultirii

Răspuns :

Andreirazvanrau
200x+100+150x-50=400
200x+150x=400-100+50
350x=350
x= 350/350
x=1/1
x=1

Bebedumi70
100(2x+1)+50(3x-1)=400
100*(2*x+1)+50*(3*x-1)-(400)=0
((100*(2x+1)+50*(3x-1))-400=0
(100*(2x+1)+50*(3x-1)-400=0
350x-350=350*(x-1)
350*(x-1)=0
350=0
x-1=0
x=1

100(2*1+1)+50(3*1-1)=400
100*(2+1)+50*(3-1)=400
100*3+50*2=400
300+100=400