Respuesta :

Answer:

So the value of x=3  and y =3

Step-by-step explanation:

5x + 3i = 15 + yi

To find out x   , set the constant terms  equal to each other and solve for x

5x= 15

Divide by 5 on both sides

x= 3

To find out y   , set the ';i' terms  equal to each other and solve for y

3= y

So the value of x=3  and y =3

Answer:  The required value of x is 3 and that of y is 3.

Step-by-step explanation:  We are given to find the values of x and y that satisfies the following equation :

[tex]5x+3i=15+yi~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

We know that

[tex]a+bi=c+di~~~~~~~~~\Rightarrow a=c,~b=d.[/tex]

That is, the real and parts on both sides of the equation are equal.

From equation (i), we have

[tex]5x+3i=15+yi.[/tex]

Equating the real and imaginary parts on both sides of the above equation, we get

[tex]5x=15\\\\\Rightarrow x=\dfrac{15}{5}\\\\\Rightarrow x=3[/tex]

and

[tex]3=y\\\\\Rightarrow y=3.[/tex]

Thus, the required value of x is 3 and that of y is 3.