Question

m-{2-{m-(4-m)]}=3 me ajuda

Answer 1

Oi Jasmin

m - (2 - (m - (4 - m))) = 3

m - (2 - (m - 4 + m)) = 3

m - (2 - (2m - 4)) = 3

m - (2 - 2m + 4) = 3

m - (6 - 2m) = 3 

m - 6 + 2m = 3

3m = 3 + 6 = 9

m = 3