Solving Equations PT 1 Test Review

What is a variable?

• A quantity representing the power to which a value will be raised.

• The right side of the equation.

• Any letter that represents an unknown value. "x" "g"

• The value in front of the variable.

What is the second step to solving any equation? (Hint: Don't Call Me After Midnight)

• Distribute

• Add or Subtract

• Multiply or Divide

• Combine Like Terms

Simplify the following expression:

-2x + 11 + 6x

• 8x+11

• 4x +11

• 4x

• 15x

Simplify the following expression:

n +10 +9n -3

• -3

• 9n-3

• n

• 10n + 7

Which of these are like terms in the following expression:
3x + 7 - 9x + 24y + 2x²

• 7, 24y
• 3x, 9x
• 3x, -9x
• 3x, -9x, 2x²

Tags

CCSS.6.EE.A.2B

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11
• 11x + 11
• 16x² - 5x + 11
• 10x²

Tags

CCSS.7.EE.A.1

Simplify the following expression:

2x² + 10x + 5x² + 25x

• 3x² + 3xy + 6y

• 6y² + 2xy + 2x

• 7x² + 35x

• 3x² + 6xy + y

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Tags

CCSS.7.EE.B.4A

Solve the following for the given variable:

-4x = 24

• x=20

• x=-20

• x=6

• x=-6

Solve the following for the given variable:

x + 9 = 23

• x=32

• x=14

• x=12

• x=33