Question

(24649 + 179):4-a=49347
a+[(524 003 - 189 379):8 - 39759]21002

Answer 1

(24649+179):4-a=49347

24828:4-a=49347

6207-a=49347

-a=49347-6207

a=-43140

a+[(524003-189379):8-39759]=21002

a+(334624:8-39759)=21002

a=21002-(41828-39759)

a=21002-2069

a=18933

Succes!

Answer 2

$(24649 + 179):4 - a = 49347\\ 24828:4 - a = 49347\\ 6207 - a = 49347\\a = 6207 - 49347\\a = -43140$

$\\a + \big[(524 003 - 189 379):8 - 39759\big] = 21002\\a + (334624:8 - 39759) = 21002\\a + (41828 - 39759) = 21002\\a + 2069 = 21002\\a = 21002 - 2069 \\ a = 18933$