Solving System of Equations

Solve the following system of equations algebraically using elimination method.

• (-3, 4)

• (3, 4)

• (3, -4)

• (-3, -3)

Solve the following system of equations algebraically using elimination method.

• (3, -3)

• (-3, 3)

• (3, 5)

• (-3, 5)

4x + 8y = 20
−4x + 2y = −30

• (-1, 7)

• (-7, 1)

• (7, -1)

• (1, -7)

Solve the system by substitution.
 
5x + 4y= −14
y =  −7x  −  15 

• (-2, -1)

• (1, -2)

• (-2, 1)

• (-1, -2)

y = -6x + 5
-2x + y = 5

• (-3, -6)

• (-6, 3)

• (0, 5)

• (-3, 5)

x = -3y - 8
x - 2y = -3

• (5, -1)

• (-5, 1)

• (-5,-1)

• (1,-5)

y = -6
-3x - 6y = 24

• (6, 6)

• (6, -6)

• (4, -6)

• (-6, 4)

solve by substitution: y=3x+14

• (2, 8)

• (-2, -6)

• (-2, 8)

• (-2, -4)

Solve the system of equations.
y = 4x+1
3x + 2y = 13

• (1, 5)

• (5, 1)

• (0.25, 2)

• ∅

Solve for x and y
2x − 3y = −1
 y = x − 1

• (-2,-3)

• (0,-1)

• (3,4)

• (4,3)