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hoa [83]
3 years ago
5

What is 5x - 6 = 3x -8

Mathematics
2 answers:
geniusboy [140]3 years ago
6 0
I believe the answer is x = 1
sveta [45]3 years ago
3 0
\frac{2x}{2} = \frac{-2}{2} 

x=-15x - 6 = 3x -8

(5x - 3x) and (6+(-8))

2x = -2


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Write 4–6 sentences explaining why it is important to have precise definitions in mathematics.
dimaraw [331]
Mathematics can be tricky so precise definitions are important. Without them there can be confusion which more often then not will generate a wrong answer. With clear precise definitions it is easier to understand the topic. Therefore, it is easier to get the correct answer.
4 0
4 years ago
In a doctor's waiting room, there are 14 seats in a row. Eight people are waiting to be seated. Three of the 8 are in one family
lianna [129]
There are 14 chairs and  8 people to be seated. But among the 8. three will be seated together:

So 5 people and (3) could be considered as 6 entities:

Since the order matters, we have to use permutation:

¹⁴P₆ = (14!)/(14-6)! = 2,162,160, But the family composed of 3 people can permute among them in 3! ways or 6 ways. So the total number of permutation will be ¹⁴P₆  x 3! 

2,162,160 x 6 = 12,972,960 ways.

Another way to solve this problem is as follow:

5 + (3) people are considered (for the time being) as 6 entities:

The 1st has a choice among 14 ways
The 2nd has a choice among 13 ways
The 3rd has a choice among 12 ways
The 4th has a choice among 11 ways
The 5th has a choice among 10 ways
The 6th has a choice among 9ways

So far there are 14x13x12x11x10x9 = 2,162,160 ways
But the 3 (that formed one group) could seat among themselves in 3!
or 6 ways:

Total number of permutation = 2,162,160 x 6 = 12,972,960

4 0
3 years ago
In elimination what is... <br> 3x+2y=-29<br>-<br>- 3x-57 = 25<br>​
andrezito [222]

Answer:

(82/3, -111/2) or x=82/3,  y=-111/2

Step-by-step explanation:

4 0
3 years ago
What two numbers multiply to 630 and add to -57
sveta [45]
-15 and -42 both add to -57 and multiply to 630 
5 0
3 years ago
Read 2 more answers
you ran 6 miles in 2 hours on friday. on saturday, you run 18 miles in 6 hours. your rate of change is 3 miles an hour true or f
maxonik [38]

6/2 =3

18/3 = 3

(18-6)/((6-2)= 12/4 =3

True

7 0
3 years ago
Read 2 more answers
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