Question

Resolva as equações
1 - a) x/6 + x/12 + x/7 + 5 - 4 + x/2 = x

b) x/6 + x/12 + x/7 - 5 = x

Answer 1

a) 14 x + 7x + 12x + 420 - 336 + 42x = 84x -> 9x = 84 -> x = 84/9 = 9,333... b) 14x + 7x + 12x - 420 = 84x -> 51x = 420 -> x = 420/51 = 8,235