Question

Resolvendo as equações apresentadas abaixo, o respectivo valor para X é:
x/ 2 + 2x/3 = -11/ 12

a) -11/14
b) – 12/18
c) 13/19
d) 15/22
e) - 21/18

Answer 1

$\frac{x}{2} + \frac{2x}{3} = -\frac{11}{12}\\\\\frac{6x + 8x}{12} = -\frac{11}{12}\\\\\frac{14x}{12} = -\frac{11}{12}\\\\14x = -11\\\boldsymbol{x = -\frac{11}{14} \quad (a)}$