Question

Write two solutions of equation 3x-2y=7

Answer 1

Dear Student,

● Answer -

(1) x = 1, y = -5

(2) x = 2, y = -1/2

◆ Explainations -

Given equation is

3x - 2y = 7

It is linear equation in x & y and and has infinite no of solutions.

(1) Put x = 1,

3x - 2y = 7

3×1 - 2y = 7

3 - 2y = 7

-2y = 7 + 3

-y = 10/2

y = -5

(2) Put x = 2,

3x - 2y = 7

3×2 - 2y = 7

6 - 2y = 7

2y = 6 - 7

2y = -1

y = -1/2

Thanks dear. Hope this helps you...

Answer 2

The solution of the question are the pairs:- (x,y) = (0,-7/2) ,(7/3,0).

The easiest way to find any 2 solutions of the equation is to alternately put the value of x and y as 0.

By doing this we can get the values which lie on the axes which are the easiest to get.

if x=0 we have:-

-2y=7.

hence y=-7/2.

similarly,if y=0:-

3x=7,x=7/3.

Hence we get the 2 solution pairs as (x,y) = (0,-7/2) or (7/3,0).