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Calculati
(ax4-4):3+2x2=12

Răspuns :

CandyXD
(ax4-4) :3+2x2= 12;
(ax4-4):3+4=12
(ax4-4):3=12-4
(ax4-4):3=9
(ax4-4):3=9x3
ax4-4=27
ax4=27+4
ax4=31:4
a=7,75
[tex](a*4-4):3+2*2=12\\ \frac{4a}{3}-\frac{4}{3}+4=12|*3\\ 4a-4+12=36\\ 4a+8=36\\4a=36-8\\4a=28\\a=28:4\\a=7[/tex]
S={7}
Verificare: (7x4-4):3+2x2=12
(28-4):3+4=12
24:3+4=12
8+4=12
12=12 (Adevarat)
\\ Steluta e operatia de inmultire