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Catalincotet11
a fost răspuns

Aflati termenul necunoscut din egalitatea {2x[14+(5+X):6]-5}:9+7=10

Răspuns :

Aardeleanu76
{2×[14+(5+X):6]-5}:9+7=10 /-7 {2×[14+(5+X):6]-5}:9=3 /×9 2×[14+(5+X):6]-5=27 /+5 2×[14+(5+X):6]=32 /:2 14+(5×X):6=16 /+14 (5+X):6= 30 /:6 5+X=5 /+5 X=10
Gandac
{2×[14+(5+X)÷6]-5}÷9+7=10 |-7
{2×[14+(5+X)÷6]-5}÷9=3 |×9
2×[14+(5+X)÷6]-5=27 |+5
2×14+(5+X)÷6=32
28+(5+X)÷6=32 |-28
(5+X)÷6=4 |×6
5+X=24 |-5
X=19
verificare
{2×[14+(5+19)÷6]-5}÷9+7=10
{2×[(14+24÷6)-5]}÷9+7=10
[(2×(14+4)-5]÷9+7=10
[(2×16)-5]÷9+7=10
(32-5)÷9+7=10
27÷9+7=10
3+7=10

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