Question

Determine the solution of linear equation
in two variables given the value of
X
1
2
y
3x+4y=7
​

Answer 1

Answer:

hope it will help u

Step-by-step explanation:

Given equation is 3x+4y=7

If x=1 put in equation we get

(i)3×1+4y=7

⇒3+4y=7

⇒4y=7−3

⇒4y=4

⇒y=1

(1,1)

If x=2 put in equation we get

(i)3×2+4y=7

⇒6+4y=7

⇒4y=7−6

⇒4y=1

⇒y=

4

1

(2,

4

1

)

If x=3 put in equation we get

(iii)3×3+4y=7

⇒9+4y=7

⇒4y=7−9

⇒4y=−2

⇒y=−

4

2

(3,−

4

2

)