Write each English phrase as an algebraic expression. Then simplify

ukelangf0

ukelangf0

Answered question

2021-12-04

Write each English phrase as an algebraic expression. Then simplify the expression. Let x represent the number. A number decreased by the sum of the number and four

Answer & Explanation

Edward Belanger

Edward Belanger

Beginner2021-12-05Added 11 answers

The number is decreased (subtracted) by the sum of the number and 4 (addition).
x-(x+4)
=-4
Result:
-4
Eliza Beth13

Eliza Beth13

Skilled2023-06-18Added 130 answers

Result: 4
Solution:
To write the English phrase ''A number decreased by the sum of the number and four'' as an algebraic expression, we can break it down into smaller parts.
Let's start by assigning a variable to represent the number. In this case, let's use x as the variable.
The phrase ''A number decreased'' indicates that we need to subtract something from the number.
The next part of the phrase is ''the sum of the number and four.'' This means we need to add the number and four together.
To summarize, the expression can be written as x decreased by the sum of x and four.
To represent the phrase as an algebraic expression, we can use the following steps:
1. Start with the variable x.
2. Add four to x to get the sum of x and four: x+4.
3. Subtract the sum of x and four from x: x(x+4).
To simplify the expression, we can use the distributive property:
x(x+4)=xx4=4.
Therefore, the simplified expression is 4.
Mr Solver

Mr Solver

Skilled2023-06-18Added 147 answers

Step 1:
Let's start by assigning a variable to the number. We'll use x to represent the number.
The phrase ''A number decreased'' implies subtraction, so we have x.
The phrase ''by the sum of the number and four'' implies we need to find the sum of x and four, and then subtract it from x. The sum of x and four can be represented as x+4.
Putting it all together, the algebraic expression becomes x(x+4).
Step 2:
To simplify the expression, we need to remove the parentheses using the distributive property of multiplication over addition/subtraction.
x(x+4)=xx4
The x terms in the parentheses cancel each other out, leaving us with 4.
Thus, the simplified expression is 4.
madeleinejames20

madeleinejames20

Skilled2023-06-18Added 165 answers

1. Let's first define the variable x to represent the number.
2. The phrase ''A number decreased by the sum of the number and four'' can be translated into an algebraic expression as follows:
x(x+4)
To simplify this expression, we can perform the subtraction:
xx4
Simplifying further, we can combine like terms:
4
Therefore, the simplified expression is 4.

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