Quizzes assignment

10x + 12x - 10 + 50 =

Mathematical Equivalence

ON

50c - 10d - 11 x 10

C=5

D=2

Mathematical Equivalence

ON

What is an Algebraic Expression?

• An expression that contains one or more variables

• A comparison of two like quantities

• A whole number and its opposite

• Thee average

Determine which expression is equivalent to

2x + 13 - x - 8

• 3x + 21

• 3x + 5

• x + 21

• x + 5

Simplify the Expression 8x + 16x= selected the best answer

• 24x
• 40x
• 4x
• 32x

Rewrite each expression in simplest form.

6a − 3(2a + 4) + 8(2a + 4)

• 16a+20

• 20a+16

• -16a+20

• 16a-20

Simplify
-6(7n - 6) + 4n

• -36 + 38n
• -38n + 36
• 36n - 38
• -36n + 38

Simplify the expression:

(14k + 11) - (7k + 3)

• 7k + 8

• 7k - 8

• 21k +10

• 21k - 10

Answer explanation

You must first distribute the - sign to everything in the second set of parentheses

Example: -(-2x + 3) becomes +2x - 3

Simplify 7(6x-2)

• 56x

• 42x-14

• 13x-9

• 13x-14