Equation
A math sentence with an equals sign
Left side
everything before the equals sign
right side
everything after the equals sign
Variable
A letter that stands for a number
Solution
A value that makes an equation true
Inverse operations
opposites that undo each other
Distribute
Multiply the number outside by everything inside
what do you do to clear fractions
multiply everything to remove fractions
Combine like terms
add terms with the same variable
Parenthesis )(
group terms together
Brackets ][
Same job as parenthesis
Implied addition
no sign means plus
Minus in front of parenthesis
flip every sign inside
After distributing
Parenthesis disappears
Linear equation
variables have power 1 only
One solution
one answer for the variable
No solution
equation is never true
infinite solutions
equation is always true
Identical expressions
Both sides simplify the same
Absolute value
distance from zero
Absolute value bars l l
Always positive or zero
two solutions (absolute value)
Absolute value equals a negative number
Fraction to decimal
Divide top by bottom
Decimal coefficient
A decimal multiplying a variable