Andre does not understand why if x is a solution to the equation 3-x=4 then x is also a solution to the equation 12=9-3x. write a convincing explanation as to why this is true

The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?