Evaluate 6a+5a=-11

$6 a + 5 a = - 11$

Add $6 a$ and $5 a$ .

$11 a = - 11$

Divide each term in $11 a = - 11$ by $11$ and simplify.

Divide each term in $11 a = - 11$ by $11$ .

$\frac{11 a}{11} = \frac{- 11}{11}$

Simplify the left side.

Cancel the common factor of $11$ .

Cancel the common factor.

$\frac{11 a}{11} = \frac{- 11}{11}$

Divide $a$ by $1$ .

$a = \frac{- 11}{11}$

Simplify the right side.

Divide $- 11$ by $11$ .

$a = - 1$