Răspuns :
Răspuns:
Explicație pas cu pas:
{[(9x3xa-79)x51-78]x15+340}÷250=36÷9
{[(27xa-79)x61-78]x15+340}=4x250
[(27a-79)x61-78]x15=1000-340
[(27a-79)x61-78]=660÷15
[(27a-79)x61-78]=44
(27a-79)x61=44+78
(27a-79)=122÷61
27a=2+79
27a=81
a=81÷27=3
a=3
Răspuns:
Explicație pas cu pas:
{[(9x3xa-79)x51-78]x15+340}÷250=36÷9
{[(27xa-79)x61-78]x15+340}=4x250
[(27a-79)x61-78]x15=1000-340
[(27a-79)x61-78]=660÷15
[(27a-79)x61-78]=44
(27a-79)x61=44+78
(27a-79)=122÷61
27a=2+79
27a=81
a=81÷27=3
a=3