2 years ago

What is the value of n in the equation 1/2 (n-4)-3=3-(2n+3)?

Mathematics

2 answers:

patriot [66]2 years ago

7 0

Answer:

Solve for

by simplifying both sides of the equation, then isolating the variable.

Step-by-step explanation:

PilotLPTM [1.2K]2 years ago

3 0

N=2 is right plz thank me by pressing heart

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Linda planned to spend 9 hours practicing piano this week. By tuesday,she had spent 2 1/2 hours practising. How much longer does

faust18 [17]

Just subtract 9:00-2:30 so your answer should 6 hours and 30 minutes or 6 1/2 hours

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2 years ago

Please help me asap<br><br>

dimaraw [331]

Okay so basically 1 + 5 = 180
and if we know 1 = 124 we can assume 5 = 56
and 5 = 4 SOOOO
4 = 56

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2 years ago

Solve the system using either Gaussian elimination with back-substitution or Gauss-Jordan elimination. (If there is no solution,

Gnom [1K]

Answer:

x1=-4/5, x2=18/5 and x3=7/5

Step-by-step explanation:

$\left[\begin{array}{ccc|c}1&0&-3&-5\\3&1&2&4\\2&2&1&7\end{array}\right]$

you can do linear combination between the rows:

2nd row=R2-3R1 and 3th row=R3-2R1

$\left[\begin{array}{ccc|c}1&0&-3&-5\\0&1&11&19\\0&2&7&17\end{array}\right]$

3th row=(3R2-R3)/15

$\left[\begin{array}{ccc|c}1&0&-3&-5\\0&1&11&19\\0&0&1&\frac{7}{5} \end{array}\right]$

1st row=R1+3R3 and R2-11R3

$\left[\begin{array}{ccc|c}1&0&0&-4/5 \\0&1&0&18/5 \\0&0&1&7/5\end{array}\right]$

x1=-4/5, x2=18/5 and x3=7/5

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2 years ago

Help here ASAP you dont have to write a long one just a short one is fine

pychu [463]

Answer:

Commutative property and associative properties are mixed up.

Step-by-step explanation:

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2 years ago

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