Can someone help with this? Please with explanantion
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Let, eye = x, lazer (idk what it is, actually) = y, and claw = z.
So, algebraically we can write:
- x + y + z = 16 _(A)
- x + x + x = 24 _(B)
- x + y - z = - 2 _(C)
- xy + z = ? _
From equation B,
x + x + x = 24
=> 3x = 24 => x = 8
From (A),
=> x + y + z = 16
=> y + z = 16 - x = 16 - 8 = 8._(1)
From (C),
x + y - z = - 2
=> y - z = - 2 - x = - 2 - 8 = - 10_(2)
Adding (1) & (2), we get:-
(y + z) + (y - z) = 8 + (- 10)
=> 2y = - 2
=> y = - 1
By putting the value of y in (1), z = 9.
Therefore, xy + z = (8)(- 1)(9) = - 72.
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