Question

solve the following system of linear equation by using the method
of elimination 2x -3y = 7 , x + y = 1.

Answer 1

Step-by-step explanation:

1.2x -3y = 7 , x + y = 1

2x -3y = 7.................1

x + y = 1.....................2

multiply eq 1 with 1 and 2 with 3

2x -3y = 7.................3

+ 3x+3y=3..................4

5x=10

x=10/5

x=2

put x=2 in eq 2

x + y = 1

2+y=1

y=1-2

y=-1

(x,y)=(2,-1) is a solution of equation.