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Sphinxa [80]
3 years ago
15

Solve 2x+7=x-3 Please can u show your working out

Mathematics
2 answers:
Korolek [52]3 years ago
7 0
X= -10
You may review the image Ive attached to see how I got this answer.

Alexxandr [17]3 years ago
7 0
Subtract 7 from both sides.
1. 2x + 7 - 7 = x - 3 - 7
now the equation reads like this 
 2x = -10 + x
subtract x from both sides 
2. 2x - x = -10 + x - x
now the equation reads like this
x = -10
then you have your answer
3. x = (-10)
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A basketball player makes 75% of her free throws. If she made 84 free throws this season, how many has she attempted?
myrzilka [38]
If you would like to know how many free throws did a basketball player attempted, you can calculate this using the following steps:

75% of x is 84
75% * x = 84
75/100 * x = 84
x = 84 * 100 / 75
x = 112 free throws

The correct result would be 1<span>12 free throws.</span>
8 0
3 years ago
If two angles of a triangle each measure 45 degrees what is the third angle
Dennis_Churaev [7]
Since you have two angles that measure 45 degrees. Those 2 equal 90 degrees altogether. Since a triangle measures 180 degrees, you take 180-90 because you already have 2 angles and are trying to find the last one. Then this makes the last angle 90 degrees.
6 0
3 years ago
Quincy claims that if 80 coats are sold, the outside temperature is likely to be about 42°
nikklg [1K]

No. Quincy should have used the trend line to find the corresponding x value when y=80.


6 0
3 years ago
Read 2 more answers
find the circumference of the circle. d=23 in. a)144.44 in b)1661.06 in c)36.11 in d)72.22 in e)415.27 in
snow_lady [41]

Circumference of a circle = \pi (diameter)

Diameter = 23 in.

Plug in the diameter = 23 in in the formula of circumference given above

Circumference of a circle = \pi (23)

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\pi = 3.14

Circumference of a circle = 23 (3.14)

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Option D is the answer

4 0
3 years ago
Read 2 more answers
How do i simplify this equation?
elixir [45]

Answer:

-6 = m (i'll show my work below)

Step-by-step explanation:

-6(m-7) + 7 = -8m + 37

-6m + 42 + 7 = -8m + 37

-6m + 49 = -8m +37

     -37     =      -37

-6m + 12  =  -8m

+6m       =    +6m

12 = -2m

/-2 = /-2

-6 = m

8 0
3 years ago
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