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Alex
2 years ago
9

4x + 11y = 7 4x + 3y = -1

Mathematics
1 answer:
Serhud [2]2 years ago
5 0

Answer:

x= - 1

y= 1

Step-by-step explanation:

qwertyuiopsknzvzbjzjjs

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Maitri and Aabhas do a work in 12 hours.
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Answer:

See below ~

Step-by-step explanation:

<u>Given</u>

  • Maitri and Aabhas do a work in 12 hours
  • Aabhas and Kavya do the work in 15 hours
  • Kavya and Maitri do the work in 20 hours

<u>Solving</u>

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  • <u>x + z = 20</u> (3)

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<u>Take Equation 2 and rewrite it so that it is equal to z.</u>

  • z = 15 - y

<u>Now, substitute these values in Equation 3.</u>

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<u></u>

<u>Substitute the value of y in Equation 1.</u>

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<u>Substitute the value of y in Equation 2.</u>

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<u></u>

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