Răspuns :
a+b=97
a:b=4 rest 7
a=bx4+7, a= 4b+7, inlocuim pe a in prima ecuatie
(4b+7)+b=97
4b+7+b=97
5b=97-7
5b=90
b=90:5
b=18
a=97-b
a=97-18
a=79
a+b=97
a:b=4 rest 7=>a=b×7+4
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a=?,b=?
B._ (un segment)
A.____+7 (4 segmente+7 )
(97-7)÷5=90÷5=18
b=18
a=18×4+7
=72+7
=79
a:b=4 rest 7=>a=b×7+4
----------------------------------
a=?,b=?
B._ (un segment)
A.____+7 (4 segmente+7 )
(97-7)÷5=90÷5=18
b=18
a=18×4+7
=72+7
=79