Hi,

*Note:  the idea is to simply 'plug' the values given into the expression

 4x-5y/2x+25

x = -16 and y = 16

(4*-16 +5*16)  / (2*-16 + 25)

(-64 + 80) / (-32 + 25)

16 / -7 Or -16/7 

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