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How do you write twice the sum of a number and 7?
twice the sum of number and 7 is equal to three times the difference of the number and 4
- 1 Answers. #1. +5. “the sum of a number and 7” is “x + 7” So, “twice the sum of a number and 7” is 2 · (x + 7) = 2(x + 7) “the difference of the number and 4” is “x – 4” = x – 4. The equation is: 2(x + 7) = x – 4.
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What does twice the sum mean?
2 Answers By Expert Tutors By twice, we mean you add it twice, or ×2. So we’re multiplying by 2, a sum between these two things. A number that we do not know, so we’ll call it x. The number 5.
How do you write the sum of twice a number?
So twice a number means 2x. The sum (use plus symbol) of twice a number and 3 can be written as 2x+3.
What is the difference of 2 and 7?
therefore, difference between 2 and 7 is 5.
What is the sum in math mean?
A sum is the result of an addition. For example, adding 1, 2, 3, and 4 gives the sum 10, written. (1) The numbers being summed are called addends, or sometimes summands.
Which is the sum of twice a number and 7?
SOLUTION: The sum of twice a number, and 7, is equal to the sum of a number and 6. Find the number. SOLUTION: The sum of twice a number, and 7, is equal to the sum of a number and 6. Find the number. Question 464699: The sum of twice a number, and 7, is equal to the sum of a number and 6.
What’s the algebraic expression for ” two times the sum and six?
Whats the the algebraic expression for “Two times the sum of a number and six “? The algebraic expression is 2x +6, where x is the number.
What does it mean when something is equal to 7?
English >> Second part of the question – “Is equal to 7”. Math >> Whenever you see “is” in a word problem, that almost always means ” = “. So if something is equal to 7, it pretty much means ” = 7 “. Now, all we have to do is piece together both parts, which leaves us with: 2(x +9) = 7