6n-20=-2n+4 (1-3n)
how do you solve it?

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did