Question

3/x-12=19/x-3
помогите решить

Answer 1

3(x-3)=19(x-12)
3x-9=19x-228
19x-3x=-9+228
16x=209
x=209/16 
x=13,0625

Answer 2

3/x-12=19/x-3
3/х-19/х=-3+12
-16/х=9
х=9/(-16)
х=-0,5625