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