mix #1
What is a variable?
a letter that stands for a number.
What is the inverse of addition?
subtraction
What is the inverse of division?
Multiplication
When solving for a variable, what do we call the box we draw around the equal sign?
a locker
a negative times a negative equals a ? _______
positive
a negative divided by a positive equals a ? ______
negative
a multiplicative inverse of a number is called a _________
reciprocal
What do you do first in the Order of Operations?
Parenthesis
quotient is a key word when you? ______
Division
a product is the answer to a _______ problem.
multiplication
What is a constant?
it is a term without a variable
What is a coefficient?
a number next to a variable
What does identity property do?
the answer keeps the same value (example 6+0=6 or 5 X 1= 5)
What is commutative property?
order does not matter with multiplication or addition, you still get the same answer
What is associative property?
You can change the grouping in multiplication and addition and the answer will be the same (example (3+4) +6 = 3+ (4+6)
What is distributive property?
multiplying the value to an expression in parenthesis. ex 9 (x + 2) = 9x + 18
What does X equal? 5x=30
x=6
What does x equal
17 + x = 30
x= 13
What does x equal ?
x - 38 = 50
x = 12
What does x equal?
8x= 56
x= 7