Algebra 1 : How to write expressions and equations
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Example Questions
Example Question #151 : How To Write Expressions And Equations
If 
Substitute the known variables into the expression.
Simplify the right side by distribution.
The answer is:
Example Question #152 : How To Write Expressions And Equations
Write the following in an expression where 
A number four more than six.
This problem states that a number, 
More indicates that you need to add 4 to the 6 that is already there. Mathematically, this looks like:
Example Question #153 : How To Write Expressions And Equations
Write the following expression in mathematical terms.
A number, 
When solving these problems, it is beneficial to break down what the question is asking of you.
The first part says that "a number, 
the word "is" is indicative of an equals sign. Thus, we know that 
However the rest of the sentence says "...than twice another number, 
So the final answer is:
Example Question #154 : How To Write Expressions And Equations
Write the following expression: Sixteen more than the square of twice a number.
Break up the sentence into parts.
Twice a number:
The square of twice a number:
Sixteen more than the square of twice a number:
The answer is:
Example Question #151 : How To Write Expressions And Equations
Write the expression: Sixteen less than twice a number.
Split the statement into parts.
Twice a number:
Sixteen less than twice a number:
The answer is:
Example Question #151 : How To Write Expressions And Equations
Write the equation: Six more than twice the square of a number.
Split the sentence into parts.
The square of a number:
Twice the square of a number:
Six more than twice the square of a number:
The answer is:
Example Question #151 : How To Write Expressions And Equations
Write the equation: A number more than the square root of twice that number is four.
Let that number be represented as 
Break down the sentence into parts.
The square root of twice that number:
A number more than the square root of twice that number:
Is four:
Combine the terms to form an equation.
The answer is:
Example Question #158 : How To Write Expressions And Equations
Write the expression: Sixty more than twice a number squared.
Break the sentence into parts.
A number squared:
Twice a number squared:
Sixty more than twice a number squared:
The answer is:
Example Question #152 : How To Write Expressions And Equations
Write the expression: Forty less than five times a number.
Break up the sentence into parts.
Five times a number:
Forty less than five times a number:
The answer is:
Example Question #160 : How To Write Expressions And Equations
Write the expression: Four less than twice a number cubed.
Break up the sentence into parts.
A number cubed:
Twice a number cubed:
Four less than twice a number cubed:
The answer is:
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