My equation is 12x−9=10x−15 i'm confused on how to solve it i've looked everywhere but ccan'tfind an answer

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Find the area of a parallelogram with base 15 yards and height 21 2/3

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement