Question

a raiz (a solução) da equação: 1 + 1/2 + x = 3/8 + 7/6 é

a) 0

b)1

c)2/3

d)1/24

e)5/6

Answer 1

$1+\frac{1}{2}+x=\frac{3}{8}+\frac{7}{6}\\\\x=\frac{3}{8}+\frac{7}{6}-1-\frac{1}{2}\\\\x=\frac{3}{8}+\frac{7}{6}-\frac{1}{1} -\frac{1}{2}\\\\x=\frac{9+28-24-12}{24}\\\\x=\frac{1}{24}$