(need it by tomorrow! ) write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

band students are tested on, and required to pass, a certain number of scales during the year. as of today, jeanette has passed 8 scales, whereas her friend paul has passed 3 of them. going forward, jeanette has committed to passing 3 scales per week, and paul has committed to passing 4 per week. at some point soon, the two friends will have passed the same number of scales. how long will that take? how many scales will that be?

in _ weeks, the friends will each have passed _ scales.