Răspuns :
a = 3*b + 7 ⇒ a - b = 93
3b+7 - b= 93 ⇒ 2b = 86 deci: b = 86:2 = 43
iar a = 3*43+7 = 136
3b+7 - b= 93 ⇒ 2b = 86 deci: b = 86:2 = 43
iar a = 3*43+7 = 136
Fie a si b cele doua numere:
a-b = 93
a = 3×b+7
a |___|___|___|+7
b |___|
3 segmente egale (+7) - 1 segment egal = 2 segmente egale +7 = 93
93-7 = 86
86:2 = 43 ( un segment)
a = 3×43 +7 = 129+7 = 136
b = 43
V. 136-43 = 93
a = 136
b = 43
a-b = 93
a = 3×b+7
a |___|___|___|+7
b |___|
3 segmente egale (+7) - 1 segment egal = 2 segmente egale +7 = 93
93-7 = 86
86:2 = 43 ( un segment)
a = 3×43 +7 = 129+7 = 136
b = 43
V. 136-43 = 93
a = 136
b = 43