Question

4x-5y=9 find the value of x, y​

Answer 1

Answer:

x and y can have different and many values as only one equation is given

Step-by-step explanation:

when x= 1

4×1-5y= 9

4-5y=9

-5y = 9-4

y = 5/-5

y = -1

Answer 2

$\huge\tt{\bold{\underline{\underline{Question᎓}}}}$

4x-5y=9 find the value of x, y

$\huge\tt{\bold{\underline{\underline{Answer᎓}}}}$

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$= > 4x - 5y = 9$

Here,we see that this is a linear equation in two variable for this type of Question we use substituting method in which we find one value of variable say 'x' and put into another equation to find the numerical value of another value say 'y'

=>for substituting method we must have two equation then we are able to find the value.

=> Here,only one equation is given.

$= > 4x - 5y = 9$

$= > 4x = 9 + 5y$

$= > 4x = 5y + 9$

$\bold{\red{= > x = \frac{5y + 9}{4}}}$

$= > 4x - 5y = 9$

$= > - 5y = 9 - 4x$

$\bold{\blue{= > y = \frac{9 - 4x}{ - 5} = \frac{ - (9 - 4x)}{5} = \frac{4x - 9}{5}}}$

Hence ,we find the two value in terms of both 'x' and 'y'.

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