I need to determine how to fina a missing variable. For example, kx-8+7y=0 if it will be parallel to the equation 2x-y+1=0. I need it a.s.a.p. thank you!

The sum of -4 and5 times a number is multiplied by 3. The result is 212 less than 7 times the number. What is the number?

How do I solve problems on antilogs??

I have been given sum homework about algebra nth terms and sequences I have attempted it but it went all wrong 1 write down the first four terms of each sequence whose n th term is given below. a 3n +1 b 4n - 2 c 2n+7 d 6n - 5 e 2n - 9 I don't heva a clue how to do these

Who know the like radicals of.. Root3(7)...