What is a variable?
What is the opposite of Addition?
Subtraction
What does this sign mean? >
Greater than
Solve for x.
x + 2 = 10
x = 8
Solve for x.
x + 6 < 12
x < 6
Give me an example of a variable.
"x" "a" "z"
What is the opposite of subtraction?
Addition
What does this sign mean? <
Less than.
Solve for x.
x - 7 = 6
x = 13
Solve for x.
x - 5 > 9
x > 14
What is an equation?
A math sentence with an equals sign.
What is the opposite of Division?
Multiplication
Which sign is missing from this inequality?
5 ___ 11
< (less than)
Solve for x.
10x = 100
x = 10
Solve for x.
6x < 12
x < 2
What is an expressions?
A math sentence without an equal sign.
What is the opposite of Multiplication?
Division
What does this sign mean? ≥
Greater than or equal to.
Solve for x.
x/2 = 7
x = 14
Solve for x.
x/4 < 3
x < 12
What is a coefficient?
The number directly in front of a variable.
What kinds of math problems do we need to know opposites in order to solve?
one step equations, two step equations, inequalities
What is the difference between this sign ≥ and this sign >? What does the line underneath mean?
Greater than OR EQUAL TO.
Explain using words what the first step to solving this equation is:
x + 4 = 14
Subtract 4 on both sides of the equation.
Solve for x.
-3x < 18
x > -6