Answer:
[tex] - \frac{13a}{10} [/tex]
Step by step explanation
[tex] \frac{ - 6a}{10} - \frac{7a}{10} \\ [/tex]
Write all numerators above the common denominator:
[tex] \frac{ - 6a - 7a}{10} [/tex]
Collect like terms and simplify:
[tex] \frac{ - 13a}{10} [/tex]
[tex]use \: \frac{ - a}{b} = \frac{a}{ - b} = - \frac{a}{b} \: to \: rewrite \: the \: fraction[/tex]
[tex] - \frac{13a}{10} [/tex]
Hope this helps...
Good luck on your assignment...
