Question

06
solve the following pair of linear equation by elimanation method x + y = 5 , 2x - 3y = 4​

Answer 1

Step-by-step explanation:

x + y = 5------(1) , 2x - 3y = 4--------(2)

3(x + y = 5)

3x + 3y = 15-------(3)

By elimination method

using equation(3) and (2)

3x + 3y = 15

2x - 3y = 4

------------------

5x = 19

x = 19/5

using equation x = 19/5 and (1)

x + 19/5 = 5

(5x + 19)/5 = 5

5x + 19 = 5 × 5

5x = 25 - 19

x = 6/5