Maths-

General

Easy

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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