Question

solve simultary equation 3x-y=8 2x-y=5?
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Answer 1

Answer:

Step-by-step explanation:

Let 3x - y = 8----eq ( 1 ) and

2x - y = 5---2 ( 2 ).

Subtracting eq ( 1 ) - eq ( 2 ) , we get

3x - y - ( 2x - y ) = 8 - 5

3x - y - 2x + y = 3 ( ∵ - × + = - ;; - × - = + )

x = 3.

Substituting " x = 3 " in eq ( 1 ) , we get

3 ( 3 ) - y = 8

9 - y = 8

y = 9 - 8

y = 1.

∴ The values of x and y are 3 and 1.