Solving Simultaneous Equations

Solve the Simultaneous Equations: x+y=5; x-y=1

• x=2, y=3

• x=3, y=2

• x=3, y=-2

• x=-3, y=2

Solve the Simultaneous Equations: a+b=11; a-b=3

• a=7, b = 4

• a=-4, b= 7

• a=4, b = 7

• a=4, b= -7

Solve the Simultaneous Equations: a+b= 3; a-b= -7

• a=-2, b = 5

• a=2, b = -5

• a=2, b = 5

• a=-2, b = -5

Solve the Simultaneous Equations: 2a+b=11; a+b=8

• a=-3, b=5

• a=3, b=-5

• a=3, b=5

• a=-3, b=-5

Solve the system of equations using substitution:
-4x + 4y = 8
y = -2x - 10

• (-4, -2)

• (12, -34)

• (4, -18)

• (-2, -6)

Solve the system of equations using substitution:
y = 2x + 5
2x + 2y = 4

• (1, 7)

• (7, 1)

• (2, 9)

• (-1, 3)

What is the solution to the system?
8x + 4y = 12
y = -2x + 3

• (0,3)

• (3,0)

• No solution(parallel lines)

• Infinitely many solutions

What is the solution?

• No solution

• (0, 2)

• (0, -4)

• (3, -3)

Where do these two lines intersect?

• No solution

• (-2, 3)

• (3, -2)

• (2, 3)

What is the solution?

• (6, 3)

• (3, 6)

• (-6, 3)

• No solution