The difference of twice a number and 7 is 5 less than three times the number. Find the number?

Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

How to use order of operation in 20 divide by 4 multiply 5 = 1