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QveST [7]
3 years ago
10

La solución a la ecuación 3x-12=5(x-2) es

Mathematics
1 answer:
alexandr1967 [171]3 years ago
3 0

Answer:

x=-1

Step-by-step explanation:

3x−12=5(x−2)

3x+−12=(5)(x)+(5)(−2)(Distribute)

3x+−12=5x+−10

3x−12=5x−10

Step 2: Subtract 5x from both sides.

3x−12−5x=5x−10−5x

−2x−12=−10

Step 3: Add 12 to both sides.

−2x−12+12=−10+12

−2x=2

Step 4: Divide both sides by -2.

\frac{-2x}{-2}=\frac{2}{-2} }

x=-1

espero que esto ayude :)

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What is the range of possible sizes for side x? _ < x < _
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Answer:

2.8 < x < 5.8

Step-by-step explanation:

We must apply the Triangle Inequality Theorem which states that for any triangle with sides a, b, and c:

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Here, let's arbitrarily denote a as 4.1, b as 1.3, and c as x. So, let's plug these values into the 3 inequalities listed above:

a + b > c  ⇒  4.1 + 1.3 > x  ⇒  5.8 > x

b + c > a  ⇒  1.3 + x > 4.1  ⇒  x > 2.8

c + a > b  ⇒  x + 4.1 > 1.3  ⇒  x > -2.8

Look at the last two: clearly if x is greater than 2.8 (from the second one), then it will definitely be greater than -2.8 (from the third), so we can just disregard the last inequality.

Thus, the range of possible sizes for x are:

2.8 < x < 5.8

<em>~ an aesthetics lover</em>

8 0
3 years ago
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Graph Y = -1/2x-6<br> Please help me out! I will mark answer brainiest if you do...
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