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Zepler [3.9K]
3 years ago
15

Solve for x: 7x - 3 = 3x + 1

Mathematics
1 answer:
oee [108]3 years ago
7 0

Answer:

x=1

Step-by-step explanation:

Move all terms containing  

x

to the left side of the equation.

Tap for more steps...

4

x

−

3

=

1

Move all terms not containing  

x

to the right side of the equation.

Tap for more steps...

4

x

=

4

Divide each term by  

4

and simplify.

Tap for more steps...

x

=

1

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3 years ago
Solve the equation on the interval 0 less than or equals theta less than 2 pi .0≤θ<2π. secant StartFraction 5 theta Over 4 En
qaws [65]

Answer:  4π/15, 4π/3 and 28π/15 (in radians)

Step-by-step explanation:

sec 5\theta/4 =2

Recall that sec \theta = 1/cos \theta

1/cos (5\theta/4) =2

cos (5\theta/4) =1/2

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This implies that

\mp60+360n=5\theta/4

\theta=4/5(\mp60+360n)= \mp48+288n

When  n=0, \theta=48

When  n=1, \theta=240, 336

Therefore the values of \theta between 0 and 2π are 48, 240 and 336. (All in degrees)

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336 degrees = 28π/15 rad

5 0
3 years ago
Three waiters at a local restaurant earned different amounts of money the past week. Jennifer earned $40 less than twice the amo
Nataly_w [17]
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4 years ago
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3 years ago
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Norma-Jean [14]

Answer:

0.27

explanation

<u>27</u>

100

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