Question

solve the equation:3 x- y=3 , 7x +2 y =20​

Answer 1

Answer:

Don't know this question.

Answer 2

Answer:

2x−3y=13…(1)

7x−2y=20…(2)

Let us use the elimination method for the given system of equations.

Multiply (1) by 2 and (2) by −3. And add both the equations.

4x - 6y = 26

-21x + 6y = -60

_________________

-17x = -34

x=2

Substitute the value of x in equation (1),

2(2)−3y = 13

4−3y = 13

−3y = 9

y = -3

Hence, the value of x is equal to 2 and that of y is equal to -3 .