Afla numarul necunoscut :
4+4×[4+4×(4+h:4) : 4=52
834-[(6×137-364÷i)÷7+139]÷3=
751
234+[(88÷4+!j)-78÷6]×23=809
Va rog ajutati-ma repede dau tot ce vrei ( coronita s-au funda ) Va rog urgent
Clothos:
La primu' unde se închide paranteză pătrată?
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1. 4+4×[4+4×(4+h:4) : 4]=52
4×[4+4×(4+h:4) : 4]=52-4
4×[4+4×(4+h:4) : 4]=48
4+4×(4+h:4) : 4=48:4
4+4×(4+h:4) : 4=12
4×(4+h:4) : 4=12-4
4+h:4=8
h:4=8-4
h:4=4
h=4×4=16
2. 834-[(6×137-364÷i)÷7+139]÷3=
751
[(822-364÷i)÷7+139]÷3=834-751
[(822-364÷i)÷7+139]÷3=83
(822-364÷i)÷7+139=83×3
(822-364÷i)÷7+139=249
(822-364÷i)÷7=249-139
(822-364÷i)÷7=110
822-364÷i=110×7
822-364÷i=770
364÷i=822-770
364:i=52
i=364:52=7
3. 234+[(88÷4+!j)-78÷6]×23=809
[(22+!j)-13]×23=809-234
[(22+!j)-13]×23=575
(22+!j)-13=575:23
(22+!j)-13=25
22+!j=25+13
22+!j=38
!j=38-22=16
4×[4+4×(4+h:4) : 4]=52-4
4×[4+4×(4+h:4) : 4]=48
4+4×(4+h:4) : 4=48:4
4+4×(4+h:4) : 4=12
4×(4+h:4) : 4=12-4
4+h:4=8
h:4=8-4
h:4=4
h=4×4=16
2. 834-[(6×137-364÷i)÷7+139]÷3=
751
[(822-364÷i)÷7+139]÷3=834-751
[(822-364÷i)÷7+139]÷3=83
(822-364÷i)÷7+139=83×3
(822-364÷i)÷7+139=249
(822-364÷i)÷7=249-139
(822-364÷i)÷7=110
822-364÷i=110×7
822-364÷i=770
364÷i=822-770
364:i=52
i=364:52=7
3. 234+[(88÷4+!j)-78÷6]×23=809
[(22+!j)-13]×23=809-234
[(22+!j)-13]×23=575
(22+!j)-13=575:23
(22+!j)-13=25
22+!j=25+13
22+!j=38
!j=38-22=16
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