8M: 6-2 QC (substitution - #2)
1.  Solve the system of equations
Infinitely many solutions 
solution
No solution
1.   y = x + 3      2x + y = 12
{
*Note: Points need
to be in ( ) with NO
spaces.
2.  Solve the system of equations.
solution
No solution
Infinitely many solutions 
2.    5x + y = 14       y = 2x
{
*Note: Points need
to be in ( ) with NO
spaces.
Solve the system of equations
No solution
solution
Infinitely many solutions 
3.   y = -x + 3      3y = x + 21
{
*Note: Points need
to be in ( ) with NO
spaces.
Solve the system of equations
solution
No solution
Infinitely many solutions 
4.   y = 3x + 5      6x - 2y = 4
{
*Note: Points need
to be in ( ) with NO
spaces.
Solve the system of equations
No solution
Infinitely many solutions 
solution
5.   6y = 3x + 18      y = 1/2 x + 3
{
*Note: Points need
to be in ( ) with NO
spaces.
Solve the system of equations
solution
No solution
Infinitely many solutions 
6.   x = 4 - y      y - x = 0
{
*Note: Points need
to be in ( ) with NO
spaces.
Solve the system of equations
solution
No solution
Infinitely many solutions 
7.   2x - y = 99      y = 2x
{
*Note: Points need
to be in ( ) with NO
spaces.
Solve the system of equations
solution
No solution
Infinitely many solutions 
8.   x = 10 - y      4x + 8y = 56
{
*Note: Points need
to be in ( ) with NO
spaces.
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