Question

Va rog frumos sa ma ajutati la urmatoarele exercitii (8x+252):2+110=680 şi 6 x (4x-60)-250=590

Answer 1

(8x+252):2+110=680
(8x?+252):2+110 =680
L +110=680
L=680-110=570
(8x?+252):2=570
(8x?+252)=570x2
(8x?+252)=1.140
8x?=1.140-252=888
888:8=111
V:(8x111+252):2+110=
(888+252):2+110
1.140:2+110
570+110=680
Concluzie :
?=111

6 x (4x-60)-250=590
6x(4x?-60)-250=590
6x(4x?-60)=590+250
6x(4x?-60)=840
(4x?-60)=840:6
(4x?-60)=140
4x? =140+60
=200
200:4=50
V: 6 x (4 x 50-60-250=
6x(200-60)-250=
6 x140 -250
840-250=590
Concluzia:
?= 50


Sper ca tiam fost de ajutor!!! Coroana!! Te rog!!!!