Question

x + y = 12

x - y = 10

What is the value of the x-determinant for the system shown?

a)-22
b)-12
c)-2

Answer 1

determinant = (1*-1) - (1*1) = -2

Answer 2

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Answer 3

thank you guise C:

Answer 4

yeah

Answer 5

plz..tell ,e

Answer 6

what do you mean?

Answer 7

plz tell me in simple language!!!

Answer 8

oh sorry what is the value of x

Answer 9

x+y=12
x-y=10

2x=22

x=11

11+y=12

y=11