Maths-

General

Easy

Question

# Solve the following by using the method of substitution

Y = - 2X-3

Y = - X-4

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 and y = - 5

### Ans :- x = 1 ; y = -5

Explanation :-

⇒ y = -2x - 3 — eq 1

⇒ y = -x - 4—- eq 2

Step 1 :- find x by substituting y = 4x + 2 in eq 2.

-2x - 3 = -x – 4 ⇒ 2x + 3x + 4

⇒ 2x – x = 4 - 3 ⇒ x = 4 - 3

⇒ x = 1

Step 2 :- substitute value of x and find y

⇒ y = - x – 4 ⇒ y = -1 - 4

∴ y = - 5

∴ x = 1 and y = - 5 is the solution of the given pair of equations.

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