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Imi trebuie urgent. Va rog
{160-[100-(50-x×2)+3]×3}+3=4


Răspuns :

deci,ca inceput,ar trebui sa notezi (50-x×2) cu o litera
[160-(100-a+3)+3]=4
160-(100-a+3)=1
160-a+3=161
160-a=158
a=2 => (50-x×2)=2
Vezi imaginea GR1235
160-[100-(50-x•2)+3]•3=4-3=1
160-[100-(50-x•2)+3]=1•3=3
100-(50-x•2)+3=160+3=163
100-(50-x•2)=163-3=160
50-x•2=160-100=60
50-x=60:2
50-x=30
x=20
sper că te.am ajutat