Solve the following by using the method of substitution
Y =  X - 2
3X - 2Y = 7

The correct answer is: x = 3 and y = 1 is the solution of the given pair of equations.

Ans :-  x = 3  ;   y = 1
Explanation :-
⇒  y =  x - 2 — eq 1
3x  - 2y   = 7 —- eq 2
Step 1 :- find x by substituting y =  x - 2 in eq 2.
3x  - 2 (x - 2)  = 7   ⇒ 3x   -2x +  4 =  7
⇒  x  =  7 - 4  ⇒   x = 3
⇒  x = 3
Step 2 :- substitute value of x and find y
⇒ y = x – 2  ⇒  y = 3 - 2
∴  y = 1
∴  x = 3  and y = 1  is the solution of the given pair of equations.