Order of Operations
4 + 3 x 6
22
Find the value of the expression x + 4 when x = 2
6
Simplify the expression by combining the like terms
4x - x
3x
x - 5 = 8
x = 13
What is an exponent
An exponent is an small floating number that tells you how many times to multiply a number by itself
42 - (9 + 5)
2
Find the value of the expression 3x - 1 when x =5
14
Simplify the expression by combining the like terms
6x + 2y + 5x
11x + 2y
4 + x = 19
x = 15
What are the order of operations? List them in order
it is the order in which you must solve a problem.
Parentheses, exponents, multiplication/division, addition/subtraction
(4 + 12) / 2
8
Find the value of the expression 2x + 3y when x = 3 and y = 10
36
Simplify the expression by combining the like terms
y2 + 3y
Can't be simplified
y2 + 3y
3x = 27
x = 9
Which below is an example of an algebraic equation:
A) 2x + 3 = 8
B) 32 - 42
C) 4y +6 - x3
D) 43 - 17 = 25 + 1
A) 2x + 3 = 8
An algebraic equation is a statement of equality involving terms with variables. It must have an equal sign and at least one variable
(4 + 1)2 - 8 =
17
Find the value of the expression a2 + 2b when a = 7 and b = 4
41
Simplify the expression by combining the like terms
4a + 5b - a - 2b + 3c
3a + 3b + 3c
x/2 = 8
x = 16
What makes something a "like term"
They are terms with the same variable and the same exponent. For example 5z and 3z are like terms, but 5z and 3y are not.
102 - 32 • 6 - 3 • 2
40
Find the value of the expression (n - 1)2 + 5m - p when n = 9, m = 2, and p = 3
71
Simplify the expression by combining the like terms
5x2 + 6x - x2 + 3x + 7
4x2 + 9x + 7
14 = x + 9
x = 5
What is a coefficient?
It is the number that multiplies a variable. It is found right infront of a variable (example: the "5" in the term 5y)