So I just did 3x-20=223
3x=243
x=243/3
x=81
so the answer would be 81
We need to simplify the expression:

Now, we know that we can resolve the exponents of the variables with the like terms only and we can multiply the coefficients independently:
Now,

On simplifying the above expression we get:




So the simplified form of the expression
.
Answer:
y= -5
Step-by-step explanation:
The unit rate is 8 pounds per dog.
128 / 16 = 8