Question

If x+3y=5 & 2x-y=3 then find the value of x?​

Answer 1

Answer: x=2

Step-by-step explanation:

x+3y=5

x=5-3y ______(eq 1)

2x-y=3

y=2x-3 ________(eq 2)

by substitution method

putting the value of x in 2nd eq

y=2*(5-3y)-3

y=10-6y-3

y+6y=10-3

7y=7

y=1

now, putting the value of y in eq 1

x=5-3*1

x=5-3

x=2

so, the value of x is 2.

Answer 2

Answer:

x = 2

Step-by-step explanation:

x + 3y = 5 ... (i)

2x - y = 3 ... (ii)

First, multiply (i) with 2:

2(x + 3y = 5)

2x + 6y = 10 ... (iii)

Now substract (ii) from (iii):

2x + 6y - (2x - y) = 10 - 3

2x + 6y -2x + y = 7

7y = 7

y = 1

from (i), x + 3y = 5

x + 3(1) = 5

x = 5 - 3

x = 2