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Write four solutions for each of the following equations:(ii) πx+y = 9. Q.2(2)

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Today i am solving the important question of ncert class 9th chapter linear equation in two variables . How i solve this exercise 4.2 question number 2(2) please  help me to solve the important question in a easiest way.Write four solutions for each of the following equations:(ii) πx+y = 9.

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  1. Solution:

    To find the four solutions of πx+y = 9 we substitute different values for x and y

    Let x = 0

    Then,

    πx+y = 9

    (π0)+y = 9

    y = 9

    (0,9)

    Let x = 1

    Then,

    πx +y = 9

    (π×1)+y = 9

    π+y = 9

    y = 9-

    (1, 9-)

    Let y = 0

    Then,

    πx+y = 9

    πx+0 = 9

    πx = 9

    x = 9/

    (9/,0)

    Let x = -1

    Then,

    πx + y = 9

    (×-1) + y = 9

    -+y = 9

    y = 9+π

    (-1,9+)

    The solutions are (0,9), (1,9-), (9/,0), (-1,9+)

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