Solve the System of Equations using Substitution.
-3x+2y=12
x=2y-8

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.