Question

(8,65+3,45)/x=-5
(y-0.61)/1.1=8

Answer 1

(8,65+3,45)/x=-5
8,65+3,45=-5x
12,1=-5x
x=12,1:(-5)
x=-2,42
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(y-0.61)/1.1=8
y-0,61=8*1,1
y-0,61=8,8
y=8,8+0,61
y=9,41