To find: the value of number described
Answer to Problem 2P
The value of the number described is
Explanation of Solution
Given information: “A number that is 38 less than its opposite”
Concept Involved:
Assign variable for the unknown that we need to find. Use the keywords in the statement to rewrite the statement to meaningful math equation.
“is” means =
“less than” means -
Solve the equation by getting the variable in one side of the equation and undoing whatever is done to it by performing reverse operation.
Calculation: Let ‘ x’ be the number that we are trying to find. Rewrite the sentence by replacing the number with x .
x is 38 less than opposite of x .
Replace the keywords to get an equation representing the sentence given
In the process of getting x in one side of the equation add x on both sides
Combine like terms on both sides
Divide by 2 on both sides of the equation
Simplify fraction on both sides of the equation
Conclusion:
A number that is 38 less than its opposite is
Chapter 3 Solutions
Algebra: Structure And Method, Book 1
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