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algol13
3 years ago
11

3x + 1 = x + 19 x = ?

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
8 0
3x+1=x+19
     -1      -1
3x=x+18
-x  -x
2x=18
/2   /2
x=9
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The equation of line with given slope that include given points is                 3 y + x - 20 = 0

Step-by-step explanation:

According to Cora , if we know the slope and points on a line then we can write the equation of a line .

Since , The equation of line in slope-intercept form is

y = m x + c

<u>Where m is the slope of line , and if we know the points ( x , y ) which satisfy the line then constant term c can be get and the equation of line can be formed .</u>

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Now , Again

Given as :

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Now from the equation of line as  y = m x + c

∴   6 =  - \frac{1}{3} ( 2 ) + c

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So , c = 6 + \frac{2}{3}

or,  c = \frac{18 + 2}{3}

∴   c = \frac{20}{3}

So, The equation of line can be written as

 y =   - \frac{1}{3} x + \frac{20}{3}

Or, 3 y = - x + 20

I.e  3 y + x - 20 = 0

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