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Inga [223]
3 years ago
11

What's the simplified form of x - 1 + 4 + 7x - 3 ?

Mathematics
2 answers:
Sati [7]3 years ago
5 0

That would be 8x, Aubreglorgaby.

x - 1 + 4 + 7x -3

8x - 1 + 4 - 3

8x + 3 - 3

8x + 0

8x

Tomtit [17]3 years ago
3 0
The correct answer would be 8x. Please vote Brainliest I just took the exam and it was correct!!!
You might be interested in
Amber has determined that the experimental probability of making a free throw in basketball is 12/15. What it the probability of
nalin [4]

Answer:

3/15, 1/5, or 0.2 probability. Highly unlikely

Explanation:

12/15 is the shown probability. The leftover is 3/15, so 3/15 is the chance of missing the basket.

~Hope this helps~

6 0
3 years ago
The earthquake was felt up to 52 miles from its epicenter.you are located 40 miles west and 30 miles south of the epicenter.let
sergiy2304 [10]
For this problem, it is best to draw a plane showing the positive and negative, in x and y axes. 
Since it is given that the coordinates of the epicenter is at (0,0), thus it is at the center of the plane. 
In order to find the outside boundary of the earthquake, the center-radius equation can be used as follows:
[(x-h)^2] - [(y-k)^2] = r^2

where, (h,k) is the coordinates of the center, which is (0,0), and r is the radius which is equal to 52.

Substituting these values into the standard center-radius equation,
x^2 - y^2 = 52^2

The answer is,

x^2 - y^2 = 2704
6 0
3 years ago
I need help please I’m almost done
loris [4]
I don’t have a pen and paper so I can’t do this. But I can tell you what to do. Use Pythagoras’ Theorem to work it out.

a2 + b2 = c2

The c2 is the hypotenuse squared and the a2 is the other measurement so

(2 x 2) + (b x b) = 100
4 + (b2)= 100
b2 = 96
b = 9.78

Answer = 9.78
3 0
3 years ago
Solve the system by substitution.<br> 5x+2y= 5<br> y=-2x + 3
Mamont248 [21]
5x+2(-2x+3)=5
5x-4x+6=5
x=-1

Then plug back into either to solve for y.

y=-2(-1)+3
y=2+3
y=5

Substitution means you just replace one variable with the other equation so only one variable is showing. That’s how you solve for the first variable.
3 0
3 years ago
Y= x - 4<br> 5x+y=-34<br> How would I do this in steps ?
Lostsunrise [7]

Answer:

x =  -5  y = -9

Step-by-step explanation:

y = x -4

5x + y = - 34

substitute x-4 in for y to solve for x

5x + x - 4 = 34

solve for x . . . add 5x + x = 6x

so you now have 6x-4 = -34

add 4 to both sides of the equation

6x-4 + 4 = -34+ 4

6x = -30

divide both sides by 6

6x/6 = -30/6

x= -5

then you plug -5 for x in the first equation

y = x - 4

y= -5 -4

y =-9

x= -5   y=  -9

8 0
3 years ago
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