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Ganezh [65]
3 years ago
12

X-(-6.9)=-2.9 What does x equal

Mathematics
2 answers:
Triss [41]3 years ago
5 0

Explanation: x + (6.9) = -2.9

x = -2.9

-6.9

<h3>Answer:</h3>

x = -9.8

const2013 [10]3 years ago
5 0

x-(-6.9)=-2.9

x+6.9=-2.9

Negative number and Negative number= Positive number

x+6.9-6.9=-2.9-6.9

x=-9.8

Answer is x=-9.8

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Mathematics can uh solve this please ​
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Answer:

a^3 + 1 = 0

Step-by-step explanation:

We start with the equation:

a + \frac{1}{a} = 1

We want to find the value of:

a^3 + 1 =

We can start with our previous equation and multiply both sides by a:

(a + \frac{1}{a})*a = 1*a\\a^2 + 1 = a

Now we can rewrite our initial expression as:

a = 1 - \frac{1}{a}

Replacing that in the right side, we get:

a^2 + 1 = a = 1 - \frac{1}{a}

Now again, let's multiply both sides by a

a*(a^2 + 1) = a*(1 - \frac{1}{a} )\\a^3 + a = a - a/a\\a^3 + a = a - 1\\a^3 = -1\\a^3 + 1 = 0

So we can conclude that:

a^3 + 1 = 0

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3 years ago
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