Simultaneous Equations (Elimination and Graphs)

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

Tags

CCSS.HSA.REI.C.6

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

x + y = 3
2x - y = 6

• x = 0, y = 3
• x = 3, y = 0
• x = 1, y = 2
• x = 2, y = 1

Find the simultaneous solution

• (6, 8)
• (8, 6)
• (-6, 8)
• No solution

Tags

CCSS.8.EE.C.8B

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

• (-2,-3)
• (0,-1)
• (3,4)
• (4,3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The simultaneous solution for these two lines is

• (4, -2)
• (4, 2)
• (-2, 4) 
• No solution

Tags

CCSS.8.EE.C.8B

A man is three times as old as his daughter. If the difference in their ages is 36 years, find the age of the father and daughter.

• 20 and 56
• 18 and 54
• 22 and 58
• 15 and 45

Tags

CCSS.8.EE.C.8C

• 14
• x=14; y= 5.5
• x= 5.5; y=14
• 5.5