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3 years ago

1+3x=x+9 solve for x.. Help?

Mathematics

1 answer:

anzhelika [568]3 years ago

7 0

Answer: x=4

Step-by-step explanation:

1+3x=x+9

-x -x

1+2x=9

-1 -1

2x=8

Divide by 2 on each side

Final result

x=4

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What is -1 5/6 - (-3 1/4) ?

lions [1.4K]

Answer:

$1\frac{5}{12}$

Step-by-step explanation:

Eliminating a negative and changing our operation

$1\frac{5}{6} +3\frac{1}{4}$

Rewriting our equation with parts separated

$-1-\frac{5}{6} +3+\frac{1}{4}$

Solving the whole number parts

$-1+3=2$

Solving the fraction parts

$-\frac{5}{6} +\frac{1}{4} =[?]$

Find the LCD of 5/6 and 1/4 and rewrite to solve with the equivalent fractions.

LCD = 12

$-\frac{10}{12} +\frac{3}{12}=-\frac{7}{12}$

Combining the whole and fraction parts

$2-\frac{7}{12} =1\frac{5}{12}$

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2 years ago

Sales at a grocery store increase 22% during the month of December. If the monthly sales are $300,000, how much are the sales in

dybincka [34]

300000 + 300000×0.22 = $366000

3 0

3 years ago

Do these form a proportion? please help me!!!

mel-nik [20]

Answer:

yes they do

Step-by-step explanation:

both equal 1/3

8/24 = 1/3

5/15 = 1/3

1/3 = 1/3

5 0

2 years ago

Read 2 more answers

What value represents 144%

riadik2000 [5.3K]

Answer:

144/100=1.44

Step-by-step explanation:

it is done

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2 years ago

X2+ 1 = 9

Aleks04 [339]

Answer:

X = 4

Step-by-step explanation:

x2 + 1 = 9

We have to cross 1 over to the other side so that x becomes a value on its own. Because we are it over, the addition sign changes to subtraction which makes the expression,

x2 = 9- 1

x2 = 8

For x to stand alone we have to divide both sides by 2

x 2/2 = x

and 8/2 = 4

Therefore x=4 (Answer)

3 0

2 years ago