Question

[X+Y X-Y] =[8 4]



OPTIONAL MATH
GRADE 8
CHAPTER=MATRIX

Answer 1

Answer:

X=6,Y=2

Step-by-step explanation:

Adding both equation,

2x=12

x=6

putting x in the first equation,

y=2

Answer 2

Answer:

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Step-by-step explanation:

X+Y=8. X-Y=4

or,. X=8-Y. or,X=4+Y

8-Y=4+Y

or,-Y-Y=4-8

or,-2Y= -4

or,2Y=4

or,Y=4/2

Y=2 (ans.)

X+Y=8

or,X=8-Y

or,X=8-2

or,X=6 (ans.)