Writing Algebraic Equations
What is the algebraic expression for 12 more than a number is 43?
12 + x = 43
Explain in your own words what the word TERM means in math class?
Give an example.
A number or variable that can be combined together using addition, multiplication or division to create an expression or equation.
What is the algebraic expression of 4 times the sum of 5 and a number?
4(5 + g)
Phrases May Vary
Parenthesis/Exponents/Multiplication/Division/Addition and Subtraction
What is the value of the expression below when x=8?
10x + 5
85
What is the algebraic expression for the difference of a number and 5 is 45?
r - 5 = 45
Explain in your own words what the word VARIABLE means in math class?
Give an example.
A symbol for a number we don't know yet, such as n, x or y.
What is the algebraic expression for 5 times the difference of a number and 3?
5 ( n - 3 )
Simplify using the operations...
9 x 4 + 23
42
What is the value of the expression below when x=4 and y=2?
3x + 7y
26
What is the algebraic expression for twice a number is equal to 30?
2m=30
Explain in your own words what the word EXPRESSION means in math class?
Give an example.
A combination of terms connected through addition and subtraction WITHOUT an equal symbol.
What is the algebraic expression for 8 less than the product of 5 and a number?
5p - 8
Simplify using the operations...
9 x (3+3) divided by 6
9
What is the value of the expression below when w=2?
4w2 - 7w - 8
-6
What is the algebraic expression for the square of a number is 81?
b2 = 81
Explain in your own words what the word COEFFICIENT means in math class?
Give an example.
A number that multiplies to a variable. Variables with no number in the front has a coefficient of 1.
What is the algebraic expression for the quotient of 7 and the difference of a number and 8?
7/(n-8)
Simplify using the operations...
9 + 3 x 52 - 10 x 6
24
What is the value of the expression below when y=2 and z=-1?
5z2 - y - 4
-1
What is the algebraic expression for the quotient of a number and 8 is equal to 16?
y/8 = 16
Explain in your own words what the word EQUATION means in math class?
Give an example.
An equation is a grouping of terms and constants that are set equal to one another.
What is the algebraic expression for the square of the difference of a number and 10?
( s - 10 )2
Simplify using the operations...
(72 - 31) divided by 32
2
What is the value of the expression when x=-3 and y=7?
-(x)2 - 3y2
-156