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r-ruslan [8.4K]
3 years ago
7

Solve the linear equation. X + 5 = -2 ​

Mathematics
2 answers:
Dafna11 [192]3 years ago
8 0
The answer is -7 .......
Vladimir79 [104]3 years ago
7 0

Answer:

x=-7

Step-by-step explanation:

So we have the equation:

x+5=-2

To solve, subtract 5 from both sides. This is the subtraction property of equality:

(x+5)-5=(-2)-5

The left side cancels:

x=(-2)-5

Subtract on the right.

x=-7

So, our answer is -7.

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Answer:

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Step-by-step explanation:

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2 years ago
Read 2 more answers
Factorise pls<br><br>any inappropriate answers will be reported<br><br><br>thanks xx
Svetradugi [14.3K]
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7 0
3 years ago
Which of the binomials below is a factor of this trinomial?<br> 4x2 + 21x + 5
guapka [62]

Answer:

B.  4x + 1

Step-by-step explanation:

4x^2 + 21x + 5

= (4x + 1)(x + 5)

Factors of this trinomial are (4x + 1) and (x + 5)

Answer

(4x + 1)

8 0
3 years ago
In the expression below, a is an integer. 12^3+ax-20 if 3x+4 is a factor of the expession above, what is the value of a
SVEN [57.7K]

Our function is:

f(x)=12^3+ax-20

Now, if 3x+4 is a factor of f(x) then x=\frac{-4}{3} must satisfy the equation:

So, f(\frac{-4}{3} )=0

Putting x=\frac{-4}{3}

We get,

f(\frac{-4}{3} )=12^3+a(\frac{-4}{3} )-20=0

12^3+\frac{-4}{3} a-20=0

\frac{-4}{3} a=20-12^3=20-1708

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4 0
3 years ago
If g(x) = x - 3 and f(x) = 3 - x2; find f(g(-2))=
const2013 [10]

Answer:

Step-by-step explanation:

g(-2) = -2 -3 = -5

f(-5)= 3 - (-5)^2 = 3 - 25 = -22

5 0
3 years ago
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