Question

УРАВНЕНИЯ
x/(52+48)=2
(200+y)*3+500=1400
(y+50)*2=400-100
(3500-x)/2=1000 
(x+5)*2=400-100
x+5=(400-10)/2

Answer 1

x+5=(400-10)/2  
х+5=390/2                 
х+5=195
х=195-5
х=190

(3500-х):2=1000
3500-х=2000
х=3500-2000
х=1500