Răspuns :
[(a+7)x3-12]:16=3
(a+7)x3-12=16x3
(a+7)x3-12=48
(a+7)x3=48+12
(a+7)x3=60
a+7=60:3
a+7=20
a=20-7
a=13
ax3=2xa+23
3xa-2xa=23
a=23
(a+7)x3-12=16x3
(a+7)x3-12=48
(a+7)x3=48+12
(a+7)x3=60
a+7=60:3
a+7=20
a=20-7
a=13
ax3=2xa+23
3xa-2xa=23
a=23
Rezolvare
1. [( a +7 ) x 3 -12 ] x 16=3 2. a x3 +13 = ax2 +23
( a+7 ) x3 -12 = 16 x3 =48 3a +13 = 2a +23
( a+7 ) x3 =48+12=60 3a -2a =23 -13
a +7 = 60 :3=20 a = 10
a = 20 -7
a= 13
Sper ca te-am autat ! Coronita ?
1. [( a +7 ) x 3 -12 ] x 16=3 2. a x3 +13 = ax2 +23
( a+7 ) x3 -12 = 16 x3 =48 3a +13 = 2a +23
( a+7 ) x3 =48+12=60 3a -2a =23 -13
a +7 = 60 :3=20 a = 10
a = 20 -7
a= 13
Sper ca te-am autat ! Coronita ?