Solving Equations Alg 1

A letter or symbol that stands for an unknown

• substitute
• equation
• expression
• variable

Tags

CCSS.6.EE.A.2B

The goal of solving a one, two, or multi-step equations is to:

• Find the constant

• Find the coefficient

• Find the value of the variable

• Be confused

Tags

CCSS.7.EE.B.4A

Isolate the variable means...

• Move the variable to the other side
• Get the variable by itself

Tags

CCSS.7.EE.B.4A

Operations that undo each other, for example addition and subtraction or multiplication and division.  "Do the opposite"

• Variable 
• Inverse Operations
• Additive Identity
• Multiplicative Identity

Tags

CCSS.HSA.REI.A.1

What is the first step you should take to solve this problem?

1 + 4n - 6n = 1 - 8n

• subtract 8n to both sides

• multiply 6n to both sides

• combine the like terms 4n + -6n

Solve the equation
4x - 5x + 9 =5x - 9

• x = -3
• x = 9
• x = 3
• x = -9

4( x + 2) = 16

What is the solution to the equation?

• -2

• 0

• 1

• 2

Tags

CCSS.7.EE.B.4A

Tags

CCSS.7.EE.B.4A

Solve:
5y+34 = -2(-7y+1)

• y = -4
• y = 9
• y = 4
• y = 36/19

8x - 8 = -4x + 16

• 8

• 16

• 24

• 2