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Mă poate ajuta vă rog cineva ?? :
a ) 96-(5×5+a×6-40)×2=9×10
b ) 96-(8×4+a×3)=6×5+19
c ) 96-(9×5-9×i)=5×6+57
va rog !! dau coroana​


Răspuns :

Răspuns:

96-(5×5+a×6-40)×2=9×10

96-(25+a×6-40)×2=90

(25+a×6-40)×2=96-90

(25+a×6-40)×2=6

(25+a×6-40)=6:2

25+a×6-40=3

25+a×6=3+40

25+a×6=43

a×6=43-25

a×6=18

a=18:6

a=3

96-(8×4+a×3)=6×5+19

96-(32+a×3)=30+19

96-(32+a×3)=49

(32+a×3)=96-49

32+a×3=47

a×3=47-32

a×3=15

a=15:3

a=5

96-(9×5-9×i)=5×6+57

96-(45-9×i)=30+57

96-(45-9×i)=87

(45-9×i)=96-87

45-9×i=9

9×i=45-9

9×i=36

i=36:9

i=4