6.2
Solving Systems by Substitution
{
y = 3x
y = x-2
{
y = x+1
4x + y = 6
{
x = 2y - 4
x + 8y = 16
{
2x + y = -4
x + y = -7
{
2x + 3y = 31
y = x+7
You are selling tickets for the high school play.
Student tickets cost $4 and adult tickets cost $6.
You sell 525 tickets and collect a total of $2876.
Write a system of equations and solve it to findhow many of each
type of ticket you sold.