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jonny [76]
4 years ago
15

Solve 2-18x-6=-7x+3+10x

Mathematics
2 answers:
Temka [501]4 years ago
7 0

Answer:

x= -1/3

Step-by-step explanation:

First, we can combine like terms on each side:

-4-18x=3x+3

Then, we move all of the variables onto one side and the constant onto the other:

-18x-3x=3+4

-21x=7

x=-7/21

x= -1/3

Hope this helps!

prisoha [69]4 years ago
6 0
Sort the equation and then find x.

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Write the equation of the line that passes through (5.-9) and (2.5).
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y = -14/3x + 43/3

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y2 - y1 / x2 - x1

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14 / -3

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A helicopter hovers at an altitude that is 1000 feet above a mountain of altitude 5210 feet. A second, taller peak is viewed fro
ehidna [41]
Given: 

Height of Mountain A = 5210 feet
Distance of Mountain A from a helicopter above the peak = 1000 feet
Angle of depression:
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       Mountain B to Mountain A = 19 degrees
 
 First, draw an illustration and label the enumerated given values.

Observe that there are two right triangles formed:

From the triangle formed by the helicopter and Mountain B, 

let x = total height of mountain B
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6 0
3 years ago
the dimensions of a square are altered so that 8 inches is added to one side while 3 inches is subtracted from the other. The ar
Mashutka [201]
Let
x--------> original length side of a square

we know that
area rectangle=length*width
area=126 in²
length=(x+8)
width=(x-3)
so
126=(x+8)*(x-3)------> x²-3x+8x-24=126----> x²+5x-150=0

using  a graph tool------> to resolve the second order equation
see the attached figure
the solution is
x=10 in

the answer is
the original length side of a square is 10 in

4 0
3 years ago
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