Question 132817
Find the equivalent expression without perentheses.

-(a-68)=

Just apply the distributive rule.

-1 times a = -a

-1 times -68 = 68

Answer: -a + 68

There is always an invisible 1 in front of the parentheses in math.  This time it happens to be -1.

So, we mutliply everything inside the parentheses by -1 and 
the answer is -a + 68.