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Ivan
3 years ago
12

5+-7+3+-6=-5 what is the work

Mathematics
1 answer:
spayn [35]3 years ago
6 0
5+(-7)+3+(-6)=-5
Answer is zero
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Solve for X: x + 2 (1.5x - 6) = 16 (IF YOU CAN PLEASE TELL ME HOW TO SOLVE QUESTIONS LIKE THIS)
Alexeev081 [22]
4x - 12 = 16) 4x -12 + 12 = 16 + 12) 4x = 28) 4x/4 =28/4) x = 7
6 0
2 years ago
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PLEASE HELP 20 POINTS<br> solve the system of equations y=-5x-7 and -4x-3y=-1 by substitution.
Ainat [17]

Answer:

Solution: x = -2; y = 3 or (-2, 3)

Step-by-step explanation:

<u>Equation 1:</u>  y = -5x - 7  

<u>Equation 2:</u> -4x - 3y = -1

Substitute the value of y in Equation 1 into the Equation 2:

-4x - 3(-5x - 7)  = -1

-4x +15x + 21 = -1

Combine like terms:

11x + 21 =  - 1

Subtract 21 from both sides:

11x + 21 - 21 =  - 1 - 21

11x = -22

Divide both sides by 11 to solve for x:

11x/11 = -22/11

x = -2

Now that we have the value for x, substitute x = 2 into Equation 2 to solve for y:

-4x - 3y = -1

-4(-2) - 3y = -1

8 - 3y = -1

Subtract 8 from both sides:

8 - 8 - 3y = -1 - 8

-3y = -9

Divide both sides by -3 to solve for y:

-3y/-3 = -9/-3

y = 3

Therefore, the solution to the given systems of linear equations is:

x = -2; y = 3 or (-2, 3)

Please mark my answers as the Brainliest if you find this helpful :)

7 0
2 years ago
Which quantity can be described as changing at a constant rate?
SSSSS [86.1K]

Answer:

321

Step-by-step explanation:

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3 0
2 years ago
Solve for x <br>40 = x/ -4/7<br> ​
Lena [83]

Answer:

40 =  \frac{x}{ -  \frac{4}{7} }  \\ 40 \times ( -  \frac{4}{7} ) = x \\ x =  -  \frac{160}{7}

3 0
2 years ago
Please solve. Evaluate the function.
Yuliya22 [10]

Answer:

(g o f)(x) = \sqrt{-510} (not simplified)

Step-by-step explanation:

(g o f)(x) = g(f(x))

g(x) = \sqrt{3x}  f(x) = x^{3} + 9x

g(f(-5)) = g((-5)^{3} + 9(-5) = (-125) + (-45) = -170

g(-170) = \sqrt{3(-170)} = \sqrt{-510}

3 0
3 years ago
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