Question

va rog rezolvati exercitiile!! dau coronita! {[(27×a-79)×61-78]×15+340}:250=4 si exercitiul asta a+b+c=145
a-m=32
b-m=40
c-m=37
a;b;c=? va rog sa rezolvati

Answer 1

{[(27×a-79)×61-78]×15+340}:250=4
[(27×a-79)×61-78]×15+340=1000
[(27×a-79)×61-78]×15=660
(27×a-79)×61-78=44
(27×a-79)×61=122
27×a-79=2
27×a=81
a=3
Verificare:{[(27×3-79)×61-78]×15+340}:250=4
{[(81-79)×61-78]×15+340}:250=4
{[2×61-78]×15+340}:250=4
{[122-78]×15+340}:250=4
{44×15+340}:250=4
{660+360}:250=4
1000:250=4


Adunam ecuatiile a-m=32 b-m=40 c-m=37 si obtinem a+b+c-3m=109
145-3m=109
3m=36
m=12
a-12=32
a=44
b-12=40
b=52
c-12=37
c=49

Verificare:
a+b+c=44+52+49=145