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Calculeaza 99-(7x8+3x8+5x4)=

Răspuns :

99 - ( 7 x 8 + 3 x 8 + 5 x 4)=  - 1
= 99 - ( 56 + 24 + 20) = 
= 99 -  100 =
= - 1
99 - ( 7 × 8 + 3 × 8 + 5 × 4 ) =
99 - ( 56 + 3 × 8 + 5 × 4 ) =
99 - ( 56 + 24 + 5 × 4 ) =
99 - ( 56 + 24 + 20 ) =
99 - ( 80 + 20 ) =
99 - 100
= - 1