Question

{[(27 xa - 79) x 61 - 78] x 15 + 340) : 250 = 4. Va roog urgent raspuns dau coronita!!❤️‍

Answer 1

Răspuns:

{[(27×a-79)×61-78]×15+340}:250=4

[(27×a-79)×61-78]×15+340 = 4 x 250

[(27×a-79)×61-78]×15+340 = 1000

[(27×a-79)×61-78]×15 = 1000-340

[(27×a-79)×61-78]×15 = 660

(27×a-79)×61-78 = 660:15

(27×a-79)×61-78 = 44

(27×a-79)×61 = 44+78

(27×a-79)×61 = 122

27×a-79 = 122:61

27×a-79 = 2

27xa = 2+79

27xa = 81

a = 81:27

a = 3