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2 years ago

My math problem went from 10a+15=65 to 10a+15-15=65-15. Explain what happened in this step.

Mathematics

2 answers:

emmainna [20.7K]2 years ago

5 0

Answer:

You are subtracting 15 from both side to isolate 10 a it would look like this afterwards:

10a=65-15

And you continue to solve

Step-by-step explanation:

balandron [24]2 years ago

3 0

You subtracted 15 from both sides so you can isolate 10a.

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Butoxors [25]

Answer:

When multiplying zeros, you first remove the zeros.

So,

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2 years ago

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hichkok12 [17]

Answer:

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Step-by-step explanation:

The answer should have originally been 3(4a-5b+2)

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dybincka [34]

Answer:

x ∈ [-2, 7]

Step-by-step explanation:

The given equation ...

x^2 -5x -4 ≤ 10

can be rewritten as ...

x^2 -5x -14 ≤ 0

and factored as ...

(x +2)(x -7) ≤ 0

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x ∈ [-2, 7]

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2 years ago

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Answer:

Here is the solution. Hope it helps.

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