The absolute value of 3 and the absolute value of negative 3. they have the same distance from 0
Answer:
the answer is d because the numbers are multiples of eachother
Step-by-step explanation:
Answer:
a. 3x=5 Positive Solution
Reasoning: You're working with only positives
b. 5z+7=3 Negative Solution
Reasoning: If you carry the 7 over the non-coefficient numbers will be negative thus making your answer negative
c. 7-5w=3 Positive Solution
Reasoning: both the coefficients and the non coefficients will be negative if solved and thus will result in the negatives becoming positive when dividing the 5w
d. 4a=9 Positive
Reasoning: The first step would be to divide the 9 by 4 and the resulting number would be positive
e. y=y+1 Negative Solution (No solution)
Reasoning: y can never equal itself with changing. Thats like saying 0 is 1. This has no solution but based on the rules this is negative solution
Answer:
2(n +7)
Step-by-step explanation:
Each part of the English description can be written using math symbols.
__
<h3>sum</h3>
A sum is formed when two or more terms are added together. Here, we are told the sum is the result of adding "a number" and 7. The number can be represented by "n", and the addition is represented by a plus sign (+). The corresponding math expression is ...
n + 7 . . . . . . "the sum of a number and 7"
<h3>product</h3>
The English description tells us this sum is multiplied by two. (That is the meaning of "two times".) In algebra, we can use several different symbols to represent "times", including a centered dot (·), a centered x (×), or no symbol at all. In this last case, the factors of the product are simply written next to each other.
We want to treat the sum as a unit, so for that purpose, we wrap it in parentheses.
2×(n +7) . . . . . . . two times the sum of a number and 7
More compactly, ...
2(n +7) . . . . . . . two times the sum of a number and 7
