Answer
$-1$
Work Step by Step
The problem must be worked in the order of PEMDAS (parentheses (or fraction bars), exponents, multiplication, division, addition, and subtraction).
$\frac{5(-9) - 6(-7)}{3}$ can be divided into $\frac{5(-9)}{3}$$-$$\frac{6(-7)}{3}$
Doing multiplication and division, the fractions can be evaluated to:
$-15$ $-$ $(-14)$
$-15 + (14) =-1$