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Anuta_ua [19.1K]
2 years ago
15

Y=−5x2+ 6x− 3 y=−4x− 3 using elimination or subsutution

Mathematics
2 answers:
Elena-2011 [213]2 years ago
4 0

Step-by-step explanation:

My math is terrible but I think u should eliminate and substitute.

Irina-Kira [14]2 years ago
3 0

I think the answer is:2x-4y=13

START BY USING BODMAS

  1. <em>Brackets</em>
  2. <em>of</em>
  3. <em>division</em>
  4. <em>multiplication</em>
  5. <em>addition</em>
  6. <em>subtraction</em>

<em>y</em><em>=</em><em>-</em><em>(</em><em>10</em><em>)</em><em>+</em><em>6</em><em>x</em><em>-</em><em>3y</em><em>=</em><em>-</em><em>4x</em><em>-3</em>

<em>{</em><em>3</em><em>+</em><em>10</em><em>=</em><em>13</em><em>}</em>

<em>{</em><em>3y</em><em>+</em><em>y</em><em>=</em><em>4y</em><em>}</em>

<em>{</em><em>6x</em><em>-4x</em><em>=</em><em>2x</em><em>}</em>

<em>4y</em><em>=</em><em>+</em><em>2x</em><em>-13</em>

<em>=</em><em>2x</em><em>-4y</em><em>=</em><em>13</em><em> </em>

<em>I'M</em><em> </em><em>NOT</em><em> </em><em>SURE</em><em> </em><em>OF</em><em> </em><em>THE</em><em> </em><em>ANSWER</em><em> </em><em>THOUGH</em>

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Step-by-step explanation:

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Svetradugi [14.3K]

Answer:

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Step-by-step explanation:

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Solve the equation. Write your answer as an integer or simplified fraction.
saw5 [17]

<u>Corrected question :</u>

Solve the equation. Write your answer as an integer or simplified fraction.

  • 8n - 7 (n - 2) = 18

<u>Required Solution :</u>

The given equation,

  • 8n - 7 (n - 2) = 18

★ Multiplying -7 into (n - 2),

>> 8n - 7 × (n - 2) = 18

>> 8n - 7n + 14 = 18

★ On substracting 7n from 8n we gets,

>> n + 14 = 18

★ Now transposing 14 which is in L.H.S. into R.H.S. (Remember that sign would be . So 14 would be -14),

>> n = 18 - 14

>> n = 14

★ Therefore,

  • Value of n is 14.

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