System of Equation by Substitution

Solve each system of equations.
y = 3x - 11.  ----------------------------------2x + 3y = 0.

• (-2,3)
• (-3,2)
• (3,-2)
• (2,-3)

Solve each system of equations.------- x - y = 5.  ------------------------------------- x + y = 3

• (4,1)
• (4,-1)
• (-4,1)
• (-4,-1)

Solve each system of equations.-------2x + 2y = 10.   -----------------------------2x - 3y =5

• (4,1)
• (1,4)
• (-4,1)
• (4,-1)

Solve each system of equations.---- --3x + 2y = 8.    --------------------------------x + y = -11

• (-5,6)
• (8,-11)
• (-6,-5)
• (6,-5)

What is the solution to the system of equations? 
y = 3x - 8
y = 4 - x

• (3,1)
• (1,3)
• (-3,1)
• (3,-1)

Solve:
x = -3y - 17
2x + 3y = -7

• (1, -20)
• (3, 0)
• (-5, -2)
• (10 , -9)

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)
• (-2,-5)
• (2,-5)
• (2,5)

1)  -4x-2y=-12
      4x+8y=-24

• (6,-6)
• (-6,6)
• (6,6)
• (-6,-6)

-2x + y = 1
-4x + y =- 1
answers in (x,y)

• (1,3)
• no solution
• (-1,3)
• (3,1)

A gym charges a one-time registration fee as well as a monthly fee. The cost of joining the gym for 4 months is $370, and the cost of joining for 6 months is $530. Write a system of equations to find the registration fee and monthly fee. m= months; r = registration fee.

• r - 4m = 370
  r - 6m = 530
• r + 4m = 370
  r + 6m = 530
• m + 4r = 370
  m + 6r = 530
• m - 4r = 370
  m - 6r = 530