Question

solve the equation by elimination method.
3x + 7y = 17
3x - y = 4​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

3x + 7y= 17..............(i)

3x - y = 4 .............(ii)

Subtracting i and ii, we get

8y= 13

therefore y=13/8

substituting y in eqn. ii,

3x-(13/8)=4

3x= 4+(13/8)

3x= 45/8

x= 15/8