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Cosneanualexiamaria
a fost răspuns

{15 x 20 -[( 39 x 7-14 x 9) x 5]:7 + 19 x 5} x 10 =
X​

Răspuns :

(15×20-((273-126)×5)÷7+19×5)×10=

(15×20-(147×5)÷7+19×5)×10=

(15×20-735÷7+95)×10=

(300-735÷7+95)×10=

(300-105+95)×10

(300-210)×10

90×10

=900

Baftă
{300-[(273-126)x5]:7+95}x10
[300-(147x5):7+95]x10
(300-735:7+95)x10
(300-105+95)x10
290x10=2900

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