Maths-
General
Easy
Question
Solve the following by using the method of substitution
Y = 4X+2
Y = X+8
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 = 2 ; y =10
Ans :- x = 2 ; y =10
Explanation :-
⇒ y = 4x + 2 — eq 1
⇒ y = x + 8—- eq 2
Step 1 :- find x by substituting y = 4x + 2 in eq 2.
4x + 2 = x + 8 ⇒ 4x – x = 8 - 2
⇒ 3x = 8 - 2 ⇒ 3x = 6
⇒ x =2
Step 2 :- substitute value of x and find y
⇒ y = x + 8 ⇒ y = 2 + 8
∴ y= 10
∴ x = 2 and y = 10 is the solution of the given pair of equations.
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