Question
Solve the following by using the method of substitution
Y = X
4X + 3Y = 7
Hint:
find x by substituting y (in terms of x) in the equation and find y by substituting value of x in the equations
The correct answer is: x = 1 ; y = 1
Ans :- x = 1 ; y = 1
Explanation :-
⇒ y = x — eq 1
4x + 3y = 7 —- eq 2
Step 1 :- find x by substituting y = x in eq 2.
4x + 3 (x) = 7 ⇒ 4x + 3x = 7
⇒ 7x = 7
⇒ x = 1
Step 2 :- substitute value of x and find y
⇒ y = x ⇒ y = 1
∴ y = 1
∴ x = 1 and y = 1 is the solution of the given pair of equations
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