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Calculeaza valoarea lui x: [{x+7}x6-10]:4+5=25

Răspuns :

Ctinamaria31xxxask
[{x+7}x6-10]:4+5=25
[{x+7}x6-10]:4=25-5
[{x+7}x6-10]:4=20
{x+7}x6-10=20x4
{x+7}x6-10=80
{x+7}x6=80+10
{x+7}x6=90
x+7=90:6
x+7=15
x=15-7
x=8

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