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AnnyKZ [126]
3 years ago
9

−6x − 2y + 2z = −8 3x − 2y − 4z = 8 6x − 2y − 6z = −18

Mathematics
1 answer:
Troyanec [42]3 years ago
5 0
What is the question here
You might be interested in
Solve for p: p - 6 = 5*<br> p = 1<br> p = 11<br> p = -1
julsineya [31]

Step-by-step explanation:

\text{p - 6 = 5}

Since we want to get ' p ' on left hand side , remove the number ' - 6 '.

⇢ \text{p  -  6  + 6 = 5 + 6} { The opposite of -6 is +6 and whatever we do to one side , we must do to the another side. So, I added 6 on both sides }

⇢ \text{p = 11} { On the left hand side , 6-6 = 0. That's how we removed the 6 so just 'p' is left. On the right hand side , 5+6 = 11 }

---------

\underline{ \underline{ \text{CHECK  }}} :

Always check your answer by substituting your answer for the variable that you solved for. This guarantees you a right answer !

\text{p - 6 = 5}

⇢ \text{11 - 6 = 5}

⇢ \text{5 = 5}

\pink{ \underline{ \boxed{ \text{Our \: final \: answer :  \boxed{ \underline{ \tt{p = 11}}}}}}}

Hope I helped ! ♡

Have a wonderful day / night ! ツ

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5 0
3 years ago
What is slope of the line -3y=8x -5?
professor190 [17]
When finding the slope of a line you need to get it into the form y=mx+b, m being your slope. So if you divide your entire problem by -3 to isolate your y, you get y=-8/3x+5/3. This means that -8/3 will be your slope.
8 0
3 years ago
The price of 2 dozen cobs of corn (which is 24 cobs) is $7.20. Joanna want to buy just 3 cobs of corn. How much will she pay?
Svetradugi [14.3K]

Answer:

21.6

Step-by-step explanation:

7.20 x 3 =21.6

4 0
3 years ago
Find the simple interest: Principal: $3020 Interest Rate: 5% Time: 6 months​
Andrews [41]

Answer:

A = $3094.58

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

Simple Interest Rate Formula: A = P(1 + r)ⁿ

  • A is the final amount
  • P is the principal amount
  • r is the rate
  • n is the time (in years)

Step-by-step explanation:

<u>Step 1: Define variables</u>

A = ?

P = 3020

r = 0.05

t = 6 months = 0.5 years

<u>Step 2: Solve for </u><em><u>A</u></em>

  1. Substitute:                    A = 3020(1 + 0.05)^0.5
  2. Add:                              A = 3020(1.05)^0.5
  3. Evaluate:                       A = 3020(1.0247)
  4. Multiply:                        A = 3094.58

And we have our final answer!

5 0
3 years ago
W-5=8w+5<br> show your work <br> no links!!!!
tatyana61 [14]

Answer:

-10/7

Step-by-step explanation:

w - 5 = 8w + 5

w - 8w = 5 + 5

-7w = 10

w = - 10/7

6 0
3 years ago
Read 2 more answers
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