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Annette [7]
3 years ago
12

If 2(x + 3) + 7x = 3(x - 2) - 9, then x = ?

Mathematics
2 answers:
Fudgin [204]3 years ago
5 0

Answer:

x=− 7 over 2 =−3.500

Hope this helps!

pychu [463]3 years ago
5 0

Answer:

x=-3.5 or -3 1/2

Step-by-step explanation:

2(x+3)+7x=3(x-2)-9

2x+6+7x=3x-6-9

9x+6=3x-15

6x=-21

x=-3.5 or -3 1/2

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Eloise hung artwork on 2/5of a bulletin board.she hung math papers on 1/5of the same bulletin board.what part of the bulletin bo
erica [24]
Here, number of bulletin board = 1
Artwork = 2/5 th, & math papers = 1/5

So, it would be: 1/5 + 2/5 = 3/5

In short, Your Answer would be 3/5 or 0.60

Hope this helps!
7 0
3 years ago
Select the correct answer.
Eva8 [605]

Answer:

Equation C: 5/8x + 2..5 = 3/8x + 1.5 + 1/4x

Step-by-step explanation:

Let us go through each of the equations one by one.

Equation A: 2.3y+2+3.1y=4.3y+1.6+1.1y+0.4

This simplifies to

5.4y+2=5.4y+2

which has infinitely many solutions.

Equation B: 32x+25-21x=10x

this simplifies to

x+25=0

x=-25

which is exactly one solution.

Equation C: \frac{5}{8} x+2.5=\frac{3}{8}x+1.5+\frac{1}{4} x

this simplifies to

\frac{5}{8} x+2.5=\frac{5}{8} +1.5

2.5=1.5

There's no way this is going to be possible; this equation has no solutions.

Equation D: \frac{1}{3} x+\frac{1}{7} x=\frac{3}{7} x

this gives

\frac{1}{3} =\frac{2}{7} y

y=\frac{7}{6}

which is exactly one solution.

Thus we see that it is equation C that has no solutions.

3 0
3 years ago
Isosceles trapezoid ABCD has legs If AB = 6y – 3, BC = 4y – 5, and CD = 7y – 18, find the value of y
castortr0y [4]

Answer:

The value of y is y=15

Step-by-step explanation:

We have:

AB = 6y – 3, BC = 4y – 5, and CD = 7y – 18

We define the isosceles trapezoid as it has two opposites parallel, the two other opposites legs are equal and also the diagonals are equal.

Here AB = CD

6y-3 = 7y-18

Combine the like terms:

18-3 = 7y-6y

15 = y

It means the value of y is  y=15....

4 0
3 years ago
What's happening to this graph when the X values are between 4 and 8?
Korolek [52]
Hello!

On the graph, when the X values are between 4 and 8, they are being constant. The X values between 4 and 8 are constant because the line shown between 4 and 8 on the graph show the line as a straight line. It is not going up nor is it going down, so you can conclude that the X values are not increasing or decreasing.

I hope this helps!
5 0
3 years ago
Read 2 more answers
Help me please!!!!!!!
EastWind [94]

Answer:

Step-by-step explanation:

Ok First you need to find out how many favorite type of music and favorite school subject.

Now then, when you find out what they are look for the answer.

If i didn't help you i'm so sorry.

                                      Good luck!

7 0
2 years ago
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