All categories

3 years ago

Simplify 6-(9x+7)+2x=

Mathematics

2 answers:

kykrilka [37]3 years ago

5 0

Answer:

-7x-1

Step-by-step explanation:

6-(9x+7)+2x

-(9x+7): -9x-7

= 6-9x-7+2x

6-9x-7+2x=-7x-1

-7x-1

kupik [55]3 years ago

5 0

Answer:

-7x - 1

Step-by-step explanation:

Well to start off we have to multiply because of the - symbol at the start of the parenthesis.

So - * 9x is -9x and - * 7 is -7 so our equation looks like this now $6-9x-7+2x=$ .

Now we have to combine like terms so 6 + -7 is -1 and -9x + 2x is -7x.

So now our equation looks like this $-7x-1=$ .

So that is simplifued all the way.

You might be interested in

What is the discriminant: 2x^2 + 3x + 10=0

ohaa [14]

The discriminant of a quadratic equation is:

$b^2-4ac$

Plug in the values.

$3^2-4(2)(10)$

$=9-80$

$=-71$

Since the discriminant is negative, you can tell that the quadratic has no real solutions.

Hope that helped!

~Cam943, Moderator

6 0

3 years ago

Read 2 more answers

Hello , I need help please THANKYOU 100 POINTS

Gnesinka [82]

Step-by-step explanation:

Let x=larger number

y=smaller number

x+y=59

x-y=13

Now adding these two equations we get

2x=72

x=36

Now as x-y=13

y=x-13=36-13=23

y=23

Therefore the larger number is 36 and the smaller number is 23

(or else u could also write)

The numbers are 36 and 23

---------------------------------------------

Let x=first number

y=Second number

x+y=15

2x-y=6

Now adding these two equations we get

3x=21

x=7

Now as x+y=15,

y=15-x=15-7=8

y=8

Therefore the first number is 7 and the second number is 8

-------------------------------------------

Let x=Larger number

y=smaller number

x-y=3

x-3y=-11

Now on subtracting these two equations we get

2y=14

y=7

Now as x-y=3,

x=y+3=7+3=10

x=10

Therefore the larger number is 10 and the smaller number is 7

8 0

2 years ago

Read 2 more answers

A car has a windshield wiper on the driver's side that has total arm length of 10 inches. It rotates

son4ous [18]

Answer:

75.44 Square Inches

Step-by-step explanation:

The diagram of the problem is produced and attached.

To determine the area of the cleaned sector:

Let the radius of the larger sector be R

Let the radius of the smaller sector be r

Area of the larger sector $=\frac{\theta}{360}X\pi R^2$

Area of the smaller sector $=\frac{\theta}{360}X\pi r^2$

Area of shaded part =Area of the larger sector-Area of the smaller sector

$=\frac{\theta}{360}X\pi R^2-\frac{\theta}{360}X\pi r^2\\=\frac{\theta \pi}{360}X (R^2- r^2)$

From the diagram, R=10 Inch, r=10-7=3 Inch, $\theta=95^\circ$

Therefore, Area of the sector cleaned

$=\frac{95 \pi}{360}X (10^2- 3^2)\\=75.44$ Square Inches$

7 0

3 years ago

Ccccc<br>ccccc<br>ccccc<br>ccccc<br>ccccc

makvit [3.9K]

Cccccccccccccccccccccccccccccccc

4 0

2 years ago

Suppose 15% of x equals 20% of y. What percentage of x is y ?

WINSTONCH [101]

Answer:

x = $133\frac{1}{3}$ of y

Step-by-step explanation:

Given:

15% of x equals 20% of y

So,

0.15x = 0.20y

x = 0.20 y / 0.15

x = 1.3333y

x = $133\frac{1}{3}$ of y

7 0

2 years ago

Read 2 more answers

Simplify 6-(9x+7)+2x=​

Simplify 6-(9x+7)+2x=