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ValentinkaMS [17]
3 years ago
8

Simplify 4+(-3)-2x(-6)

Mathematics
1 answer:
jonny [76]3 years ago
8 0

Answer:

1 + 12

Step-by-step explanation:

Let's do this one step by step!

We are going to make sure that we pay attention to the part in the parenthesis first!

Let's multiply -2x with -6 first.

Equation:

4+(-3)-2x(-6)

We do not need to parenthesis around the -3 because a negative cancels out a positive. So, no matter what you would have to subtract.

4 - 3 + 12x

And we get a positive 12 because both numbers that were being multiplied were negative.

Now let's combine common terms.

1 + 12x

This is your answer! I hope this helped!

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Given: sin(18m-12)=cos(7m+2), find the value of m.
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Answer:

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Step-by-step explanation:

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-cos(7 m + 2) sin(12 - 18 m) = 0

Multiply both sides by -1:

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Split into two equations:

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Subtract 2 from both sides:

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or sin(12 - 18 m) = 0

Divide both sides by 7:

m = -2/7 + π/14 + (π n_1)/7 for n_1 element Z

or sin(12 - 18 m) = 0

Take the inverse sine of both sides:

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Answer: m = -2/7 + π/14 + (π n_1)/7 for n_1 element Z

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