Question

3)If 2x+3y=7 and 2y-x=0,then find the value of x​

Answer 1

Answer:

2

Step-by-step explanation:

First, let us take the equation 1:

2x + 3y = 7

(Finding the value of y)

3y = 7 - 2x

y =  (7-2x)/3

Now, we will substitute the value of y in the second or first equation.

(taking second equation.)

2y - x = 0

2 * (7-2x)/3 - x = 0

2 * (7-2x)/3 = x

14 / 3 - 4x / 3 = x

(14-4x)/3 = x

3x = 14 - 4x

3x + 4x = 14

7x = 14

x = 2