Question

Afla valoarea necunoscutelor:(423-C):(671-111*3*2)=70 (1000-d*2-25*4):6=143 (e-406:2+29*4):3-108:9=132 f:7+25=[900-(300-48*5)*9]:9 pkease ajutatima dau coroana

Answer 1

(423-c):(671-111*3*2)=70
(423-c):(671-333*2)=70
(423-c):(671-666)=70
(423-c):5=70
423-c=70*5
423-c=350
c=423-350
c=73

(1000-d*2-25*4):6=143
(1000-2d-100)=143*6
1000-100-2d=858
900-2d=858
2d=900-858
2d=42
d=42:2
d=21

(e-406:2+29*4):3-108:9=132
(e-203+116):3-12=132
(e-203+116):3=132+12
(e-203+116):3=144
e-203+116=144*3
e-203+116=432
e-203=432-116
e-203=316
e=316+203
e=519

f:7+25=[900-(300-48*5)*9]:9
f:7+25=[900-(300-240)*9]:9
f:7+25=(900-60*9):9
f:7+25=(900-540):9
f:7+25=360:9
f:7+25=40
f:7=40-25
f:7=15
f=15*7
f=105