Question

multiple choice questions
4. Find the values of x and y in the following
equations :
x - 3y = 8 & 5x + 3y =10
(a) x = 3, y=-3
(b)x= -3, y =
(c) x = -3, y= 3
(d) None of these​

Answer 1

Answer:

its option d

Step-by-step explanation:

coz when you solve these two equations

i. e 5x+3y=10

+x-3y=8

here +3y and -3y gets cancelled

so now we have

6x=18

.•.x=3

and now sub x=3 value in x-3y=8

i. e 3-3y =8

-y= 8-3/3

y = -5/3

hope it Helps you....

Answer 2

Given : Equations :

x - 3y = 8  

5x + 3y =10

To Find : Value of x and y

(a) x = 3, y=-3

(b)x= -3, y =

(c) x = -3, y= 3

(d) None of these​

Solution:

x - 3y = 8         Eq1

5x + 3y =10      Eq2  

Add both the equations

6x  = 18

=> x = 3

Substitute x = 3 in Eq1

=> 3 - 3y  = 8

=> -3y  = 5

=> y = -5/3

x = 3  and  y = - 5/3

None of the given option matches

Hence correct answer is Option d) None of these​

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