Question

7. a-b=3 a <3b cu 11 a=? b=?
4.Cel mai mare număr a÷123=40 80 <rest <150
5. a÷72=cât rest 68 catul=a÷24 c=?

Answer 1

7.a-b=3=>a=3+b
a=3b-11
3+b=3b-11
3+11=3b-b
14=2b=>b=7;a=10

4.a:123=40,rest,x
=>123x40+x=a=>a=4920+x
dar,x,trebuie,sa,fie,mai,mic,decat,123=>x=122=>a=5042

5.a:72=C,rest,68=>72C+68=a
C=a:24=>a=24C

72C+68=24C
72C-24C=(-68)
48C=(-68)
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