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Pani-rosa [81]
3 years ago
10

Combine the like terms to create an equivalent expression. \large{7n+4n}7n+4n

Mathematics
1 answer:
julsineya [31]3 years ago
6 0

Answer:

11n

Step-by-step explanation:

The expression is 7n + 4n. Since 7n and 4n are like terms (they both are variables with n), we can combine them so the expression becomes 7n + 4n = 11n.

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Expand 5(2x-4) please please
kotykmax [81]

Answer:

10x - 20

Step-by-step explanation:

<em>Distribute 5 </em>to <em>each</em> of the terms within the parentheses to get 5(2x) - 5(4) = 10x - 20.

7 0
3 years ago
Use algebra to solve the same equation.
Ray Of Light [21]
I don’t get what you mean?
5 0
3 years ago
Which of the following is equal to the rational expression when x does not equal 3 or -10? (x+5)(x-3)/(x-3)(x+10)
denis-greek [22]
For an expression to have a rational equivalent when solved, the denominator should not be equal to 0. If the denominator is equal to zero, the expression becomes indefinite or undetermined. This is the reason for the restriction of the use of x being equal to 3 or -10. 

In the given above, we can see that the expression x-3 appears both in the numerator and denominator. Hence, this can be cancelled. We are then left with the expression,
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7 0
3 years ago
If square root m= 8, then m must equal ____. 4. 8. 16. 64
Whitepunk [10]

Answer:

64

Step-by-step explanation:

To find m, it has given you √x = 8. The opposite of a square root is squaring (exponentials). Simply just square 8 and you should get x = 64. You can check by square rooting 64, and you should get 8.

5 0
3 years ago
sari has 3 times as many pencil eraser as sam. together they have 28 easers. how many eraser does sari have?
Sholpan [36]
21. if Sam's erasers are represented by x, then sari, who has three times more, would be represented by 3x. since you are adding two together to get 28, the equation would be 28=3x+x. Simplify to 28=4x, divide by 4 to isolate x, where x=7. multiply this by 3 to get sari's amount.
4 0
3 years ago
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