Question

Substitution method for the sum 2x+3y=0
And 3x+4y=5

Answer 1

❣️Hi friend ❣️

Look at the attachment .

Verification
- Put x and y value in equation 1
2(-15)+3(10) =0
-30+30=0

Thanks ☄️

Answer 2

2x + 3y = 0 ...... (i)

3x + 4y = 5 ........ (ii)

From equation (i) , we get
2x = -3y
=> x = -3y / 2 .....(iii)

On substituting the value of x in equation (ii) we get ,

3( -3y/2 ) + 4y = 5
=> -9y / 2 + 4y = 5
=> -9y + 8y / 2 = 5
=> -y = 10
=> y = -10

Now, on putting the value of y in equation (iii) we get,

x = -3(-10) /2
= 30 /2 = 15


Hence the value of x= 15 and y = -10 .