Systems by Substitution

• (1, -4)

• (1, 4)

• (-4, -7)

• (-7, -4)

• (3, -6)

• (3, -8)

• Infinite number of solutions

• (3, 6)

Solve the following system:

 $2x-y=-1$  

 $y=x-1$  

•  $\left(-2,-3\right)$  

•  $\left(4,\ 5\right)$  

•  $\left(5,\ 3\right)$  

•  $\left(3,\ 4\right)$  

Solve the following system:

 $y=-2$  

 $4x-3y=18$  

•  $\left(3,\ -2\right)$  

•  $\left(3,\ 2\right)$  

•  $\left(-2,3\right)$  

•  $\left(2,\ 3\right)$