To simplify the expression -3/4 r + 3 - 5/6 r - 6, we need to combine like terms.
First, we can group the terms with 'r' together and the constant numbers together.
- The 'r' terms are -3/4 r and -5/6 r.
- The constant terms are 3 and -6.
Now let's simplify the 'r' terms:
-3/4 r - 5/6 r
To add these fractions, we need a common denominator. The least common denominator of 4 and 6 is 12.
Now, we convert each fraction:
-3/4 = -9/12 (because -3 times 3 is -9, and 4 times 3 is 12) -5/6 = -10/12 (because -5 times 2 is -10, and 6 times 2 is 12)
Now we can combine them:
-9/12 r - 10/12 r = (-9 - 10)/12 r = -19/12 r
Next, let's simplify the constant terms:
3 - 6 = -3
Now we combine everything:
So, the simplified expression is:
-19/12 r - 3
Therefore, the final answer is -19/12 r - 3.