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nydimaria [60]
3 years ago
14

X - 4y = 12 X - 5y = 15 PLS HELP ME SOLVE USING ELIMINATION

Mathematics
1 answer:
balu736 [363]3 years ago
7 0

Answer:

(0, -3)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

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

x - 4y = 12

x - 5y = 15

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

<em>Elimination</em>

  1. Subtract 2 equations:                    y = -3

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Define original equation:                    x - 4y = 12
  2. Substitute in <em>y</em>:                                     x - 4(-3) = 12
  3. Multiply:                                                x + 12 = 12
  4. Subtract 12 on both sides:                  x = 0
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Please Help!!
GarryVolchara [31]

Answer:

D:) (2,2,) is the Answer

Step-by-step explanation:

Solve the following system:


{X - 2 Y = -2 | (equation 1)


{3 X - 2 Y = 2 | (equation 2)



Swap equation 1 with equation 2:


{3 X - 2 Y = 2 | (equation 1)


{X - 2 Y = -2 | (equation 2)



Subtract 1/3 × (equation 1) from equation 2:


{3 X - 2 Y = 2 | (equation 1)


{0 X - (4 Y)/3 = (-8)/3 | (equation 2)



Multiply equation 2 by -3/4:


{3 X - 2 Y = 2 | (equation 1)


{0 X+Y = 2 | (equation 2)



Add 2 × (equation 2) to equation 1:


{3 X+0 Y = 6 | (equation 1)


{0 X+Y = 2 | (equation 2)



Divide equation 1 by 3:


{X+0 Y = 2 | (equation 1)


{0 X+Y = 2 | (equation 2)



Collect results:


Answer:  {X = 2 , Y = 2

4 0
3 years ago
Read 2 more answers
Pl help it’s for a grade
True [87]
I think the answer is b
I hope this helps :)
5 0
3 years ago
Read 2 more answers
Compare 4.6, 2.8..., square root 17, 3.9..., square root 8
Basile [38]
1. Square root 17= 289, Square root 8= 64.
289 = 289.00 \:  \: 64 = 64.00
4.6 > 2.8
289.00 > 64.00
289.00 > 4.6
4.6 > 3.9
2.8 < 3.9
Least to greatest:
2.8, 3.9, 4.6, 64.00, 289.00


7 0
3 years ago
Shamariah collects silk roses. She had 17 silk roses in a vase. Six friends each gave her 3 more roses. How many roses does sham
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Answer: 4535

Step-by-step explanation:

she has 17 slik roses already, and 6 friends give her 3 silk roses each, so that's 6 times 3, which makes 18, and 17 plus 18 is 35, so she has 35 silk roses in all.

4 0
3 years ago
What is the balance as a result of having a credit of $84 and a debit of $29?
34kurt
Hello!
 I would be more than happy to help!
So to find the balance use this equation.

Balance = Credit- Debit


 In other words, to find BALANCE... You Subtract Debit from Credit
 
whats my credit? 84$
Whats my debit? 29$
Whats my balance? Lets find out! How? Well, lets subtract my credit (84) from my debit (29).

84-29= 55

Balance =55
 

Hope this helped!

8 0
3 years ago
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