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m-(647-47)=3800 

60000-(n+12000)=37000 

(5682-p)+18=1700

(r-1908)-92=4630

(d-295)*13=260

25*(540-s)=2500

t:(6000-5996)=600

(471+h):11=781 

m - (647-47) = 3800m - 600 = 3800m = 3800 + 600m = 440060000 - (n+12000) = 3700060000 - n - 12000 = 3700048000 - n = 37000-n = 37000 - 48000-n = -11000n = 11000(5682 - p) + 18 = 17005682 - p = 1700 - 18-p = 1682 - 5682-p = -4000p = 4000(r-1908) -92 = 4630r - 1908 = 4630 + 92r = 4722 + 1908r = 6630(d-295)*13 = 260d - 295 = 260/13d = 20 + 295d = 31525*(540-s) = 2500540-s = 2500/25- s = 100 - 540-s = -440s = 440t:(6000-5996)=600t:4=600t=600*4t = 2400(471+h):11=781471 + h = 781/11h = 71 - 471h = - 400