[tex]-9x- \frac{2x}{-3} [/tex]
[tex]-9*(7) - \frac{2*7}{-3} [/tex]
[tex]9*7 = 63[/tex]
[tex] \frac{2*7}{-3} = \frac{14}{-3} [/tex]
Apply the fraction rule : [tex] \frac{a}{-b} = - \frac{a}{b} [/tex]
[tex]= - \frac{14}{3} [/tex]
[tex]-63-( -\frac{14}{3} )[/tex]
Apply rule - ( - a) = a
[tex]-63+ \frac{14}{3} [/tex]
Convert element to fraction :
[tex]63 = \frac{63}{1} [/tex]
[tex] -\frac{63}{1} + \frac{14}{3} [/tex]
Find the LCD 1*3 = 3
[tex]- \frac{63*3}{3}+ \frac{14}{3} [/tex]
[tex] \frac{-3+63+14}{3} = \frac{-175}{3} [/tex]
Apply the fraction rule : [tex] \frac{a}{-b} = - \frac{a}{b} [/tex]
[tex]= - \frac{175}{3} [/tex]
hope this helps!
