Maths-
General
Easy

Question

Solve the following by using the method of substitution
Y = 4X+2
Y = X+8

hintHint:

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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