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Leokris [45]
3 years ago
10

What is the solution of 3(x-1)=2x+5

Mathematics
2 answers:
dalvyx [7]3 years ago
4 0
3(x-1)=2x+5
3x-3=2x+5
3x-2x=3+5
x=8
Tpy6a [65]3 years ago
3 0
3( x - 1 ) = 2 x + 5
 
Expand 3(x-1) :

3*x - 3 x 1 

3 x - 3 = 2 x + 5

Add 3 both sides :

3 x - 3 + 3 = 2 x + 5 + 3

3 x = 2 x + 8

3x - 2 x = 8

x = 8

hope this helps!



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A rectangle has length 72 cm and width 56 cm. The other rectangle has the same area as this one, but its width is 21 cm. What is
Ira Lisetskai [31]

The length of the rectangle is = 72 cm

The width of the rectangle is = 56 cm

Area of the rectangle is = length*width

= 72\times56=4032 cm²

As given, the other rectangle has the same area as this one, but its width is 21 cm.

Let the length here be = x

4032=x*21

x=\frac{4032}{21}=192

Hence, length is 192 cm.

We can see that as width decreases, the length increases if area is constant and when length decreases then width increases if area is constant.

So, in the new rectangle,constant of variation=k is given by,

\frac{192}{72}=\frac{8}{3} or \frac{56}{21}=\frac{8}{3}

Hence, the constant of variation is \frac{8}{3}

7 0
3 years ago
Which points lie on the line that passes through point P and
4vir4ik [10]

Answer:

(-5,-1)

Step-by-step explanation:

First, draw a parallel line to the blue one that has a slope of over 1 to the right and up 1.

Second, look at the new line and see if any of the points are on the line.

All of the other point do not fall on the new line.

6 0
4 years ago
Read 2 more answers
4(x+7)=38 what does x equal?
mariarad [96]

Answer:

2.5

Step-by-step explanation:

6 0
3 years ago
Write a point-slope equation for the line that passes through the point (8,1) and is parallel to the line given by y 5.8x-9. Do
kvasek [131]
We know that
the equation of a line is
y-y1=m*(x-x1)

we have 
y=5.8x-9-----> the slope m=5.8
if the lines are parallel 
then
the slopes are the same
point <span>(8,1)
</span>y-y1=m*(x-x1)----> y-1=5.8*(x-8)

the answer is
y-1=5.8*(x-8)

5 0
3 years ago
I don't get this can somebody help me
Alex17521 [72]
2x° + 1 + x° - 6 + 59°= 360°

3x° + 54° = 360°

3x = 306°

x = 102°

2(102°) + 1°= 204° + 1° = 205°

102° - 6°= 96°

205° + 96° + 59°= 360°
7 0
4 years ago
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