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Sauron [17]
3 years ago
15

How to do two step equations simple please help and you can do the example on this one: 2x+5=21

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
4 0

Answer: The answer here is x=2

Step-by-step explanation:

This is a linear equation, take 5x to other side ut will change a sign then solve for x.

2x+5=21

2x=21-5

2x=16

Lastly divide by 2 both sides to get 2

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F(x)=7x-17/x^2+6x+9 <br>solve using fractional decomposition
Kazeer [188]

Answer:

f(x) = 7/(x+3) -38/(x+3)²

Step-by-step explanation:

The denominator is a perfect square, so the decomposition to fractions will involve both a linear denominator and a quadratic denominator.

You can start with the form ...

... f(x) = B/(x+3) + A/(x+3)²

and write this sum as ...

... f(x) = (Bx +3B +A)/(x+3)²

Equating coefficients gives ...

... Bx = 7x . . . . . B = 7

... 3B +A = -17 . . . . the constant term

... 21 +A = -17 . . . . filling in the value of B

... A = -38 . . . . . . . subtract 21 to find A

Now, we know ...

... f(x) = 7/(x+3) -38/(x+3)²

8 0
3 years ago
What is the equation of a line that passes through the points (3,6) and (8, 4)?
Dahasolnce [82]

Step-by-step explanation:

slope=4-6/8-3=-2/5

chosing another point (x,y) we have

y-4/x-8= -2/5

y-4=-2/5(x-8)

y= -2/5x+16/5+4

6 0
3 years ago
What is the slope of the line y = 6x + 3?<br> 3<br> -6<br> 6<br> -3
Nataly_w [17]

Answer:

the answer is 6

Step-by-step explanation:

slope = m

y = mx + c

m = 6

8 0
2 years ago
Am I correct????????
lord [1]
Answer choice 3
is the best choice.
7 0
3 years ago
Read 2 more answers
Four more than a number is no more than thirteen
statuscvo [17]
The equation would be 4+x\leq 13. 
Subtract 4 from both sides. The four on the left would cancel out and the 13 on the right would now be a 9. Therefore, the answer is x \leq 9
4 0
3 years ago
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