#### Answer

-3

#### Work Step by Step

According to the last step of order of operations, we must evaluate addition and subtraction from left to right.
First, we only consider $6-(-1)$. Change the minus sign to a plus sign and insert the opposite of the second number in place of the second number.
$6-(-1)=6+(1)=6+1=7$
Next, we can add this to -10.
$7+(-10)=-3$