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3 February, 13:17

X + y = 12

x - y = 10

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

a) - 22

b) - 12

c) - 2

+2
Answers (1)
  1. 3 February, 13:33
    0
    We are given with two equations to find the values of two variables, hence the problem can be solved.

    Adding the two equations:

    x + y = 12x - y = 10

    2x = 22

    x = 11

    y = 1
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