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Nicolici6
a fost răspuns

calculati 74+3*(86-7*3)=x+5*(196-7*20)

Răspuns :

[tex]74+3(86-21)=x+5(196-140)[/tex]
[tex]74+3*65=x+5*56[/tex]
[tex]74+195=x+280[/tex]
[tex]269=x+280[/tex]
[tex]x=269-280[/tex]
[tex]x=-11[/tex]
Viogeoionut
74+3*(86-7*3)=x+5*(196-7*20) ; 74+3*(86-21)= x+ 5*(196-140) ; 74+3*65=x+5*56 74+195=x+280 ; 269-280=x ; x= -11