Solve for x: 3+x=2x=?

Mathematics

2 answers:

worty [1.4K]3 years ago

7 0

Answer:

X=3

Step-by-step explanation:

3+x=2x

Collect like terms

3=2x-x

3=x.

X=3

Leokris [45]3 years ago

4 0

Answer:

x=3

Step-by-step explanation:

3+x=2x

Subtract x from each side to get the variable on one side

3+x-x=2x-x

3 = x

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rjkz [21]

Answer:

$161.88

Step-by-step explanation:

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2 years ago

Which rational expression has a value of 0 when x=-2

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Im sorry. I need the options to answer this...
But if you want to answer this your self just take all your options and replace x with -2 and use PEMDAS to find if it equals 0 or not.

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3 years ago

Read 2 more answers

what is the lub and glb of the following sets, in the set of real numbe if exists E={ 0.2,0.23,0.234,0.2343,0.23434,0.23434,...}

Brums [2.3K]

Answer:

Hello,

Step-by-step explanation:

$LUB(E)=0.2=\dfrac{1}{5} \\\\GUB(E)=0.2 34 34 34 ....=0.2+\dfrac{1}{10} *0.343434....\\\\=\dfrac{1}{5} +\dfrac{1}{10} *\dfrac{34}{99} \\\\=\dfrac{198+34}{990} \\\\=\dfrac{116}{495}$