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Fed [463]
2 years ago
7

−2(2x + 5) − 3 = −3(x − 1)

Mathematics
2 answers:
ZanzabumX [31]2 years ago
5 0

Answer:

x =-16

Step-by-step explanation:

-2(2x + 5) - 3 = -3(x -1)

Expand

\mathrm{Expand\:}-2\left(2x+5\right)-3:\quad -4x-13\\\\\mathrm{Expand\:}-3\left(x-1\right):\quad -3x+3\\\\-4x-13=-3x+3

Collect like terms and simplify

-4x+3x =3+13\\-x =16\\

Divide both side by -1

\frac{-x}{-1}=\frac{16}{-1}\\\\x =-16

nasty-shy [4]2 years ago
4 0

Answer:

x=−16

Step-by-step explanation:

-2(2x+5)-3=-3(x-1)

distribute -2 into (2x+5) and -3 into (x-1)

-4x-10-3=-3x+3

combine like terms

-4x-13=-3x+3

add -4x on both sides

-13=-3x+4x+3

combine like terms

-13=x+3

subtract 3 on both sides

-16=x

hope this helps

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Dylan, Alan, Bruce, and Cecil are brothers. Dylan weighs d pounds. Alan weighs 3 pounds more than twice what Dylan weighs. Bruce
vaieri [72.5K]

Answer:

Part A: 2D + 3 = A

Note: I have likely given you the answer to the whole problem. See below.

Step-by-step explanation:

Givens

  • Alan = A
  • Bruce = B
  • Cecil = C
  • Dylan = D

Comment

You have to pay the most attention to Alan and Bruce. Once you have equations for those two. Cecil's weight is just the sum of those two.

<em>Alan</em>

Alan = Twice*Dylan + 3 or

A = 2*D + 3

<em>Bruce</em>

Bruce = three * Dylan - 12

B = 3*D - 12

<em>Cecil</em>

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Note

The last equation shows you how to combine the first two.

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