One Step Equations Flashcards
(14 cards)
What is a variable?
The letter
the number that can vary
What is the coefficient
The number attached to a letter
What is the constant
The number that will always stay the same
it does not have a variable attached to it
what is a term
numbers or letters that are seperated by an operator
what is an expression
an equation without an equal sign (=)
How do you solve one step equations?
- The variable must be isolated on one side of the equation
- Isolate the variable by using inverse operations
- Keep the equation balanced
- Check your solution by plugging your answer back into the equation
Isolated (alone), inverse (opposite)
What is the inverse of multiplication
Division
What is the inverse of addition
Subtraction
What is the inverse of division?
Multiplication
What is the inverse of subtraction
Addition
How do you add in an equation?
7 - x = 4
+ 7 +7
__________
x = 11
always remember to keep the line
How do you subtract in an equation?
3 + x = 4
-3 -3
________________
x = 1
Always remember to keep the line
How do you divide in an equation
5x = 25
_________
5 5
x = 5
Always remember to keep the “fraction” line when dividing
How do you multiply in an equation
x/7 = 5
5 × x/7 = 5 × 5
