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GalinKa [24]
3 years ago
13

Solve for x. Show each step of the solution. 2.5(4-x)+12=21-4(2.5x+7)

Mathematics
1 answer:
erastova [34]3 years ago
8 0

Answer:

x=-58/15

Step-by-step explanation:

distribute first 10-2.5x+12=21-10x-28

Simplify(add the numbers) 22-2.5x=-7-10x

move the variable to the left side 22-2.5x+10x=-7

move the constant to the right side -2.5x+10x=-7-22

simplify like terms 7.5x=-29

divide by 7.5                       x=-58/15

alternate forms are x=-3 13/15                or  x=-3.86

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3 years ago
El valor numérico de la expresión 〖P(y)=y〗^2-7y+10 para y=2 es: a. P(2)=9 b. P(2)=0 c. P(2)=-2 d. P(2)=-5
nika2105 [10]

Answer:

Opción b, P(2) = 0

Step-by-step explanation:

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P(y) = y^2 - 7*y + 10

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3 years ago
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zavuch27 [327]
For this case what you should see is the behavior of each function to find the correct answer.
 We have functions of the type:
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