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dusya [7]
3 years ago
12

Please help me solve for x (show work) -4/7x = -1

Mathematics
2 answers:
Aliun [14]3 years ago
5 0

<h2>See the attachment✔</h2>

...... ❤

Law Incorporation [45]3 years ago
3 0

\frac{ - 4}{ \:  \: 7} x =  - 1

Now firstly we have to take 7 to right hand side and multiply -1 by 7

- 4x =  - 1 \times 7

- 4x =  - 7

Now we have to take -4 to the right hand side and divide -7 by -4

x =  \frac{ - 7}{ - 4}

As we know that in case of division - and - are cancelled so ,

x =  \frac{7}{4}

Hope it helps u mate

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Answer:

m∠1=80°

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Step-by-step explanation:

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To do that find m∠6 (I created this angle shown in pic below)

Find m∠6 by using the sum of all ∠'s in a Δ theorem

m∠6=180°-(63°+49°)

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m∠2=180°-68°

m∠2=112°

Then you find m∠5 using the sum of all ∠'s in a Δ theorem

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Now you can find m∠1

m∠1=180°-(63°+37°)

m∠1=180°-100°=80°

m∠4 can easily be found too now:

m∠4=180°-(63°+37°)

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