Question

solve the following system of Simultaneous equation by using
matrix method
a) x+y = 4 and x-y=2​

Answer 1

Step-by-step explanation:

x= 4-y

(4-y) -y= 2

4-2y= 2

-2y=-2

y=1

Answer 2

Answer:

By arranging the equations.

x=3

and

y=1

Explanation:

x+y=4

x-y=2

Sum these up:

2x=6

x=6/2

x=3

Use the first original equation to find y:

x+y=4

3+y=4

y=4-3

y=1

hope it helped u..