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Day 4 combining like terms
1. 1
Do Now
AIM: Combining Like Terms
Solve and Check the following equations.
1.) -5x + 15 = -25 2.) -3 = - 14
y
5
2. 2
-2(x + 6) - 12x -2 = 8x - 10(x - 1)
Solve the following equation. SHOW YOUR CHECK!
BY THE END OF THIS UNIT
YOU WILL BE ABLE TO:
3. 3
Anticipatory Set
Philipe is organizing the storerooms at an
athletic club. He finds 3 cases and 2 cans
of tennis balls in one room and 5 cases and
6 cans of tennis balls in another room.
How many cases and cans does he have?
4. 4
Anticipatory Set
Philipe is organizing the storerooms at an
athletic club. He finds 3 cases and 2 cans
of tennis balls in one room and 5 cases and
6 cans of tennis balls in another room.
You can also show this situation with
Algebra Tiles.
x 1
3x + 2 + 5x + 6
QUESTION: Why does Philipe need to use two
different types of algebra tiles?
x
1
x x
1
x x
x x
x
1
1
1
1
1
1
5. 5
1.) 4x + 2x 2.) 5x + 2 + 3x
x 1
x x
x x
x
x
x x
x x
x
1
1
x x
x
6. 6
x 1
3.) x + 1 + 2x + 4
4.) 3x + 4 + 3x + 5
x 1
x x
1 1
1 1
x x
x
1
1
1
1
x x
x
1
1
1
1
1
7. 7
Terms: are numbers, variables, or products of numbers
and variables. Terms in an expression are separated by
addition and subtraction symbols.
(Example: 3x + 5 + x - 7)
Coefficients: A number that is multiplied by a variable.
(Example: 4x, 4 is the coefficient)
Like Terms: terms with the same variable raised to the
same power.
