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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

A mathematical sentence that contains <, ≤, ≥ or > is a(n) __________________.

• Identity
• Inequality
• System of equations
• Null set

An equation that is true for every value of the variable

• Null set
• Identity
• Property
• Inequality

3x + 2(4x - 4) = 3

• 4
• 3
• 2
• 1

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Translate: 
Four times a number plus six IS 30.

• 4 + 6 = 30
• 4x + 6 = 30
• x + 4 times 6 = 30
• 30 = 4x

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

What is the solution?

• No solution
• (0, 2)
• (0, -4)
• (3, -3)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

CCSS.HSF.IF.B.4

Where do these two lines intersect?

• No solution
• (-2, 3)
• (3, -2)
• (2, 3)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11