Question

Urgent. DAU COARONA!!!!

Answer 1

Răspuns

Explicație pas cu pas:

(J+4)+(E+4)+(W+4)=124 ani peste 4 ani

J+E+W+12=124

J+E+W=112 ani au în prezent

W=J-2=>J=W+2

W=10+E=>E=W-10

W+2+W-10+W=112

3×W-8=112

3W=120=>W=120÷3=40ani are william turner

E=W-10=40-10=30 ani are Elizabeth

J=W+2=40+2=42 ani are jack

Answer 2

Răspuns

a=Jack,b=Elizabeth,c=Will

a+b+c=124-12

c=a-2=>a=c+2

c=b+10=>b=c-10

c+2+c-10+c=112

3c=112-2+10

c=120:3

c=40 ani are will

a=c+2=>a=40+2=>a=42 ani are Jack

b=c-10=>b=40-10=>b=30ani are Elizabeth