Question

solve the following simultaneous using equation by equating coefficient. 3x + 2y = 14 , -x + 4y = 7​

Answer 1

Answer: x = 3

Step-by-step explanation:

3x+2y = 14

or, 2y = 14 - 3x

So,

-x+4y = 7

or, -x+28-6x = 7 (substuting the values)

or, 28-7x = 7

or, -7x = 7-28

or, -7x = -21

or, 7x = 21

or, x = 21/7

or, x = 3

Therfore, x = 3