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Ksenya-84 [330]
2 years ago
8

X-(2x+3) how to solve and why you change the sign for the +3?

Mathematics
2 answers:
alekssr [168]2 years ago
6 0

Answer:

-x - 3

Step-by-step explanation:

x-(2x + 3)

=> x-1(2x + 3)

=> x - 2x - 3

=> -x - 3

Therefore, this is the solution. Hoped this helped.

GeniusUser

Lina20 [59]2 years ago
4 0

Answer:

Step-by-step explanation:

x-(2x+3)

Notice that we can't further simplify the things in the bracket so we should multiply by -1

Technically this is like:

x - 1(2x+3)

-1 times 2x = -2x   , -1 times 3 is -3

= x - 2x - 3

= -x - 3

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Step-by-step explanation:

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Assoli18 [71]

Answer:

x(x + 1)

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2 years ago
Fill in the blank so that the ordered pair is a solution of y=9x+4 .<br> ( , 22)
aalyn [17]

Answer:

(2,22)

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8 0
2 years ago
Read 2 more answers
What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3
liubo4ka [24]

<u>Answer:</u>

3/5

<u>Step-by-step explanation:</u>

We are to find the similarity ratio of a cube with volume  729 m^3 to a cube with volume 3375 m^3.

We know the formula for the ratio of two cubes:

\frac{V_1}{V_2} =k^3

where k is the similarity ratio of the two cubes.

Substituting the given values in the formula to find k:

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Therefore, the similarity ratio of the two cubes is 3/5.


8 0
3 years ago
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