Adv
Rajan@2021
  • 0
Guru

Solve for x and y: 2x-3y/4=3, 5x=2y+7

  • 0

An important and conceptual question from linear equations in two variables in which we have been asked to calculate x and y from the equations 2x-3y/4=3, 5x=2y+7

Kindly solve these equations

RS Aggarwal, class 10, chapter 3B, question no 10

Share

1 Answer

  1. The given equation are

    2x3y/4=3 and 5x=2y+7

    Rearranging these equations we get,

    8x3y=12 …..(1)

    5x2y=7 ……(2)

    multiply (1) by 2 and by 3 on subtracting we get

    16x6y=24

    15x6y=21

    –         +      –

    x   0=  3

    x=3

    putting x=3 in (1) we get

    8(3)3y=12

    243y=12

    3y=1224

    3y=12

    y=12/3

    y=4

    hence x=3,y=4

    • 0
Leave an answer

Leave an answer

Browse

Choose from here the video type.

Put Video ID here: https://www.youtube.com/watch?v=sdUUx5FdySs Ex: "sdUUx5FdySs".

Captcha Click on image to update the captcha.

Related Questions