ALGEBRA 1 - LESSON 18

Mathematical Equivalence

ON

[18] Simplify each expression by adding like terms. [note: put the variable of the highest power - or exponent - first. If they are the same, write in alphabetical order.]

Mathematical Equivalence

ON

Simplify:

• Cannot be simplified

Write expressions representing the number of pages each class read per night.

• 15 + 12 + x + y

• 12x + 15y and 9x + 7y

• 15x + 12y and 7x + 9y

• 9 + x + 7 + y

Write an expression for the number they read altogether.

• 21x + 22y

• 3x + 8y

• 19x + 24y

• • 5x + 6y

[18] Simplify [write variables in order from highest exponent then alphabetical order (if the exponents are the same)]

Mathematical Equivalence

ON

[18] Simplify [higher powers first, alphabetical order for same exponents]

Mathematical Equivalence

ON

[18]

Mathematical Equivalence

ON

[16]

Mathematical Equivalence

ON

Mathematical Equivalence

ON