Question
Solve: x - 2y = 8 , 4x + 2y = 7 by using elimination method.
Hint:
find x by eliminating y and find y by substituting x in the equations.
The correct answer is: x = 3 ; y = -5/2
Ans :- x = 3 ; y = -5/2
Explanation :-
x - 2y = 8 — eq 1
4x = 2y = 7 — eq 2
Step 1 :- find x by eliminating y
Eliminating x by adding eq 2 and eq1 then
Step 2 :- substitute value of x and find y
and y = -5/2 is the solution of the given pair of equations.
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