beijing9

Verified answer

(920-х)=(63-25)*20
920-x=760
x=920-760=160

150:у=480:40-7
150:y=5
y=150:5=30

(470-х)=(172-65)*3
470-x=321
x=470-321=149

270:у=108:9+18
270:y=30
y=270:30=9

х=15756:26-427
x=179

у=6768:564+39
y=51

IUV

Verified answer

(920-х):20+25=63
(920-x):20=63-25=38
(920-x)=38*20=760
x=920-760=160


(150:у+7)*40=480
(150:у+7)=480:40=12
150:у=12-7=5
у=150:5=30

 (470-х):3+65=172
 (470-х):3=172-65=107
 (470-х)=107*3=321
х=470-321=149

(270:у-18)*9=108
(270:у-18)=108/9=12
270:у=108/9=12+18=30
у=270:30=9


26*(х+427)=15756
х+427=15756/26=606
х=606-427=179



6768:(у-39)=564
у-39=6768/564=12
у=39+12=51