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hey lovies!!! can i please have some help?
Which expression has a value that is equivalent to 5n + 13 when n=−5 ?

n² + 13
4n + 8
n + 8
2n + 2
Which expression is equivalent to 8(x−3) ?

8x−24
8x + 5
8x + 24
8x−3
thank you!!!!!

Respuesta :

Ashraf82

The expression 4n + 8 has a value that is equivalent to 5n + 13 when n = -5 ⇒ 2nd answer

The expression 8x - 24 is equivalent to 8(x - 3) ⇒ 1st answer

Step-by-step explanation:

To find the value of any expression:

  • Substitute the variable by its given value
  • Find the answer of the expression

∵ The expression is 5 n + 13

∵ n = -5

- Substitute n by -5 in the expression

∴ 5(-5) + 13 = -25 + 13 = -12

Now let us find which expression give the same answer

∵ The expression is n² + 13

∵ n = -5

∴ (-5)² + 13 = 25 + 13 = 38 ⇒ not the same answer

∵ The expression is 4n + 8

∵ n = -5

∴ 4(-5) + 8 = -20 + 8 = -12 ⇒ same answer

∵ The expression is n + 8

∵ n = -5

∴ (-5) + 8 = 3 ⇒ not the same answer

∵ The expression is 2n + 2

∵ n = -5

∴ 2(-5) + 2 = -10 + 8 = -2 ⇒ not the same answer

The expression 4n + 8 has a value that is equivalent to 5n + 13 when n = -5

∵ The expression is 8(x - 3)

- Multiply 8 by the two terms in the bracket

∵ 8(x) = 8x

∵ 8(-3) = -24

∴ 8(x - 3) = 8x - 24

The expression 8x - 24 is equivalent to 8(x - 3)

Learn more:

You can learn more about the expressions in brainly.com/question/11207748

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