Question

find four solutions of 4x+2y=30​

Answer 1

Answer:

There are infinite solutions for this question.

Step-by-step explanation:

This is because there are two variables, you can put any real value of either X or Y.

Eg: if x=1

4(1)+2y=30

This will forms a linear equation, forms some more and your answer will be complete.

I hope you can complete now.

Answer 2

Answer:

• (i)4x+y=9

If x=0 then

x×0+y=9

⇒y=9

(0,9)

• (ii)4x+y=9

If y=0 then

4x+0=9

⇒4x=9

⇒x= 9/4

• (iii)4x+y=9

If x=1 then

4×1+y=9

⇒4+y=9

⇒y=9−4=5

(1,5)

• (iv)4x+y=9

If y=1 then

4x+1=9

⇒4x=9−1=8

⇒x=2

(2,1)