Question

Q 9) Find three solutions of the equation 3x + y =7.​

Answer 1

Answer:

Substitute any value of x, we will get value of y.

Let x = 1/3 .

Now, 3x + y = 7

=>3(1/3)+y = 7

=> y = 6 .

Let y = 0 .

Now, 3x + y = 7

3x = 7

x = 7/3 .

Let x =2 .

Now, 3x + y = 7 .

3(2)+y = 7 .

y = 1 .

Solutions of 3x+y=7 :- (1/3,6) , ( 7/3,0) , ( 2 , 1 )

Answer 2

Step-by-step explanation:

1 ) put x = 1 and y = 4 then,

3×1 + 4 =7

3+4= 7

7 =7

2) put x= 2 and y= 1 then,

3× 2 + 1 = 7

6 + 1= 7

7 = 7

3) put x= 0 and y = 7 then,

3× 0 + 7 = 7

0 + 7 =7

7 = 7