Question

Find the value of x+y,if 5x-2y=4 and x+8y=26

If answer is correct I will mark it as a brainlist....​

Answer 1

Step-by-step explanation:

$5x - 2y = 4.........(1) \\ x + 8y = 26.........(2) \\ putting \: equation \: 1 \: and \: 2 \\ 5x - 2y = 4 \\ 5x + 40y = 130 \\ - \: \: \: \: - \: \: \: \: \: - \\ = = = = = = = = = \\ - 42y = - 126 \\ y = \frac{126}{42} = > 3 \\ now \: putting \: the \: value \: of \: y \: in \: 1 \\ 5x - 2y = 4 \\ 5x - 2 \times 3 = 4 \\ 5x = 4 + 6 \\ 5x = 10 \\ x = 2$

hence

the value of X+Y=2+3

=5

I hope it will be helpful

Answer 2

The value is $x+y=5$.

Step-by-step explanation:

Given : Equations $5x-2y=4$ and  $x+8y=26$

To find : The value of  $x+y$  ?

Solution :

$5x-2y=4$ .....(1)

$x+8y=26$ .....(2)

Substitute the value of x from (2) in (1),

$5(26-8y)-2y=4$

$130-40y-2y=4$

$42y=126$

$y=\frac{126}{42}$

$y=3$

Substitute the value in (2),

$x+8(3)=26$

$x=26-24$

$x=2$

Now add the value of x and y,

$x+y=2+3$

$x+y=5$

Therefore, the value is $x+y=5$.

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