Question

find the value of a from the equation 3x+4y=a.if its one solution is x=2y,y=1

Answer 1

Hey mate Your ans is here.....

Given That:-

3x + 4y = a.......(i)

and,

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

y = 1..........(iii)

from eq....(i) and (ii)

x = 2..............(iv)

Now,

3x + 4y = a

3*2 + 4*1 = a

a = 6 + 4

a = 10✅✅✔✔✔✅✅


Hope it helps.

Please mark as brainliest....

Answer 2

3x + 4y = a

Given that x = 2, y = 1 :

3(2) + 4(1) = a

a = 6 + 4

a = 10

Answer: a = 10