Question

Find the solution of the following pair of linear equations using Elimination method. 7x + 2y = 20 and 3x – y = 3​

Answer 1

Answer:

Given:

7x−2y=1 ...(1)

3x+4y=15 .... (2)

First multiply the first equation by 2:

We got, 14x−4y=2

Now add the first and second equation:

14x−4y+3x+4y=15+2

17x=17

so, x=1

By putting x in any equation we got;

y=3