Multiplication
(4)(7)
28
x + 4 = 12
x = 8
Constant
A value that does not change. eg 5
A mathematical statement that represents a value eg x + 1, 5
expression
7+(8x2)
23
(4)(9)
36
x - 6 = 10
x = 16
This is the definition of a variable including what it usually is and the two most common examples used in algebra
A symbol that represents a value. The value may change depending on the parameters given. It is usually the letter x or y in algebra.
a mathematical statement where the expression on the left equals the statement on the right
equation
5+3x2-10
1
(5)(8)
40
x/5 = 3
x = 15
How we solve algebraic equations. We use:
opposite operations
This is the line between the numerator and the denominator. Means division in a fraction.
vinculum
-2+4+5x2-1
11
(7)(8)
56
3x = 9
3
The definition of a coefficient
a value that is multiplied or divided against a variable
A value that is multiplied or divided against the variable
coefficient
4/2+3*2+6
14
(8)(6)
48
-5x = 25
x = -5
This is the vinculum
The fraction line between the numerator and denominator. It means division.
What the objective of solving an equation is
isolate the variable
4(3+3-2)2
32