Simplifying Expressions
Adding Polynomials
Solving 1-Step Equations
Solving 2-Step Equations
Math Miscellaneous
100
10 - 12
- 2
100
(3x + 2) + (2x - 1)
5x + 1
100
x + 2 = 6
4
100
2x + 2 = 4
1
100
What is the math word that refers to the answer of an addition problem. (Hint: The _____ of 2 plus 2 is four.)
Sum
200
3y - 3y
0 or 0y
200
(-4x - 1) + (4x + 3)
2 (or, 0x + 2)
200
y - 2 = -6
-4
200
3x + 1 = 7
x = 2
200
If you do something to one side of the equation, you always have to....
...do the same thing to the other side.
300
2y - 1y + 3y
4y
300
(3x + 2) - (3x + 2)
0
300
b/2 = 4
8
300
4x + 1 = -7
-2
300
Solving an equation by "isolating" the variable means...
...getting the variable (x or y or whatever) alone on one side of the equation; also acceptable to say "undoing" whatever has been done to the variable to get it by itself.
400
2y + 5 - 2y + 5
10
400
(4x + 4) - (x - 3)
3x + 1
400
b/(-2) = 4
-8
400
4x - 4 = -12
-2
400
State the inverse (or opposite) operations. (Which ones go together to "undo" each other when solving equations?) Bonus: when solving multistep equations, how do we use PEMDAS?
Addition and Subtraction Multiplication and Division BONUS: PEMDAS is used backwards (to "undo" the operations and isolate the variable)
500
-3a - (-4a) + 1 - (-2)
a + 3
500
(-x + 1) - (-3x + 2)
2x - 1
500
-12a = 12
-1
500
x/3 - 2 = 2
x = 12
500
Math is _________________.
Acceptable answers include: fun... awesome... my best friend... my favorite thing... etc.
M
e
n
u