Smecheru2021ask
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1+2x3+[5+5x(6+7xX)]x2:4=112

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Anda92837ask

Răspuns:

1+2×3+[5+5×(6+7×x)]×2:4=112

[5+5×(6+7x)]×2:4=112-1-6=>105

[5+5×(6+7x)]×2=105×4=>420

5+5×(6+7x)=420:2=>210

5×(6+7x)=210-5=>205

6+7x=205:5=>41

7x=41-6

7x=35

x=35:7

x=5

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