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Marianna [84]
3 years ago
8

What is the sum of the solutions of 2x [×-1]-4=-2

Mathematics
2 answers:
Sati [7]3 years ago
6 0
Lets get stated :)

2x ( -1 ) - 4 = - 2
- 2x - 4 = - 2

Bring 4 to the right-hand side { You do addition to the opposite }
- 2x = - 2 + 4
- 2x = 2

Take - 2 to the other side in order to isolate x { Do division when you see multiplication }
\frac{-2x}{-2} = \frac{2}{-2}
x = -1

Quick check:
2 ( - 1 ) ( - 1 ) - 4 = - 2
2 - 4 = - 2
- 2 = - 2
So it is the correct value
Dafna11 [192]3 years ago
5 0
I believe the answer would be 2/4
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Allushta [10]
I don’t know I need points
7 0
3 years ago
Please help thanks in advance
Galina-37 [17]

Answer:

43.25

Step-by-step explanation:

Since sides DF and FE are congruent, their opposite angles D and E are also congruent.

m<D + m<E + m<F = 180

x + x + 93.5 = 180

2x = 86.5

x = 43.25

Answer: 43.25

7 0
3 years ago
Evaluate a/b for a = 1/2 and b = -3/7 <br> Answers: <br> 3/14<br> -32/21<br> -3/14<br> -7/6
lapo4ka [179]
1/2 ÷ -3/7 = -7/6 The answer is -7/6
3 0
3 years ago
It's a system of equations x=-4y x+6y=18
Misha Larkins [42]
Subsitute -4y for x

-4y+6y=18
2y=18
divide both sides by 2
y=9
sub back

x=-4y
x=-4(9)
x=-36

(x,y)
(9,-36)
3 0
3 years ago
Hello, Earthlings! Martian here! Need help with math, I'm new to this subject! You'll get 50 (B) coins for answering!
alekssr [168]

Answer:

answer is 10000

Step-by-step explanation:

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