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The answer is 8.
In showing my work:
3(x) - 21 = 3 is the equation setting up the problem.
Then you want to isolate (x) on one side of the equation.
To do so you first have to eliminate the 21 from the left side by adding 21 to each side.
3(x) - 21 + 21 = 3 + 21. Therefore, 3(x) = 24.
Now in order to solely isolate (x), you must divide each side by 3.
3(x)/3 = 24/3. Therefore, x = 8. That is your answer.
What else can I help you with?
The sum of three times a number and 7 more than the number is the same as the difference between -11 and twice the number What is the number?
18
What is the difference between two times a number and three?
2n - 3
Difference between highest three digit number and lowest six digits number?
99,001
What is a verbal expression for 3x-4?
7
Find the difference between one quarter of 76 and three quarters of 76?
Three quarters of a number less one quarter of a number = two quartres, or a half of the number. A half of 76 = 76/2 = 38
The difference between three times a number and one?
The difference between three times a number and one is two times the number.
What is the difference between the largest 3 digit numbers?
The largest three-digit number is 999. The difference between the largest three-digit number and the next largest number, which is 998, is 1. However, if comparing 999 to the smallest three-digit number, which is 100, the difference is 899. Thus, the context of the comparison determines the difference being referenced.
The sum of three times a number and 7 more than the number is the same as the difference between -11 and twice the number What is the number?
18
What is the difference between two times a number and three?
2n - 3
What is the number if it is a multiple of both three and seven and the difference between the two digits is three?
63
Difference between highest three digit number and lowest six digits number?
99,001
What is the difference between three times a number and six?
The difference between three times a number and six can be expressed mathematically as (3x - 6), where (x) represents the number. This expression shows that you first multiply the number by three and then subtract six from the result. Essentially, it's comparing a scaled version of the number to a fixed value of six.
What is the difference between plus 3 and 3?
3 is a number and plus 3 is adding three to a number
What is the algebraic expression for the difference between seven times a number and three times that number?
7/ 3/
What is the difference between the least and the largest three-digit number?
least = 100 largest = 999 difference = 899
What is the difference between three million thousand and three billion?
They are two ways of expressing the same number: three billion (3,000,000,000).
What is The difference between five times a number and twice that number?
The difference between five times a number and twice that number can be expressed mathematically. If we let the number be represented by ( x ), then five times the number is ( 5x ) and twice that number is ( 2x ). The difference is calculated as ( 5x - 2x ), which simplifies to ( 3x ). Thus, the difference is three times the original number.
