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Anna71 [15]
3 years ago
8

What is the solution to this equation 5(90-7x)=x-126

Mathematics
1 answer:
azamat3 years ago
5 0
Hello there! :D

5(90-7x)=x-126

Distribute the 5. (multiply 90 and -7x by 5)

5*90= 450

5*-7x=-35x

450-35x=x-126

Add 35x on both sides. 

450= 36x-126

Add 126 on both sides. 

576=36x

Divide both sides by 36. 

x=16 

I hope this helps!
~kaikers
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
what is the equation, in slope- intercept form, of the line that contains the points (-3,4) and (5,7)
gavmur [86]

Answer:

y = \frac{3}{8} x + \frac{41}{8}

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

To calculate the slope use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 4) and (x₂, y₂ ) = (5, 7)

m = \frac{7-4}{5+3} = \frac{3}{8}, hence

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To find c substitute either of the 2 points into the partial equation

using (5, 7 ), then

7 = \frac{15}{8} + c ⇒ c = 7 - \frac{15}{8} = \frac{41}{8}

y = \frac{3}{8} x + \frac{41}{8} ← equation in slope-intercept form


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3 years ago
What is the lcd of 1/4 and 2/3
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Answer:

undefined

Step-by-step explanation:

The x coordinates didn't change so the line is vertical and vertical lines have undefined slope

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3 years ago
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