(-1/2)/x = -7/3
*multiply both sides by x
(-1/2) = (-7/3)x
*divide both sides by (-7/3)
(-1/2)/(-7/3) = x
dividing by a fraction is the same as multiplying by it's reciprocal:
x = (-1/2)*(-3/7)
* the negative signs cancel
x = (1/2)*(3/7)
x = (1*3)/(2*7)
x = 3/14
