4. write three equations that have the variable x on both sides. the equations should
be different from those you wrote in explorations 1 and 2.

What is the greatest common factor of 8 and 36

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

What signals you that factoring by grouping is the best method to use when factoring a problem?