X= 103
180 - 65 = 115
X + 12 = 115
X = 115 - 12 = 103
It works because 7 x 9 x 10 is the same thing as 7 x 90, since 9 x 10 is just 90. So basically he is just writing more but the answer will still be the same.
An expression of more than 2 terms
Drusilla will replace both items in 18 months and 36 months.
Answer:
Step-by-step explanation: