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jeyben [28]
3 years ago
5

Solve the system of equations 3x = 84 - 2y 9x = 8y - 24

Mathematics
1 answer:
Eduardwww [97]3 years ago
8 0

Answer:

3x = 84 - 2y -  -  - (i) \\ 9x = 8y - 24 -  -  -  - (ii) \\ from \: (ii) \\ 3(3x) = 8y - 24 \\ but \: from \: (i) \:  \: 3x = 84 - 2y \\ hence \: put \: (i) \: in \: (ii) \\ 3(84 - 2y) = 8y - 24 \\ 252 - 6y = 8y - 24 \\ 276 = 14y \\ y =  \frac{138}{7}  \\ x =  \frac{104}{7}

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7 0
3 years ago
Read 2 more answers
Can anyone help me plz
mario62 [17]

Answer:

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Step-by-step explanation:

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Equation:  

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4 0
3 years ago
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Ymorist [56]
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6 0
3 years ago
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Solve. −3.5=−4.6x−5.1 Enter your answer as a fraction in simplest form in the box.
Law Incorporation [45]

Answer:

<u>x = 8/23</u>

Step-by-step explanation:

<u>Adding 3.5 to each side</u>

  • -3.5 + 3.5 = -4.6x - 5.1 + 3.5
  • -4.6x - 1.6 = 0

<u>Adding 4.6x to each side</u>

  • -4.6x - 1.6 + 4.6x = 0 + 4.6x
  • 4.6x = -1.6

<u>Dividing each side by 4.6</u>

  • 4.6x/4.6 = -1.6/4.6
  • <u>x = 8/23</u>
7 0
2 years ago
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Answer:

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