5х+3х-200=1000
5x+3x=1000+200
5x+3x=1200
8x=1200
x=1200:8
x=150
8х-200=1000
8х=1000+200
8х=1200
х=1200:8
5х+3х-200=1000
5x+3x=1000+200
5x+3x=1200
8x=1200
x=1200:8
x=150
5х+3х-200=1000
8х-200=1000
8х=1000+200
8х=1200
х=1200:8
х=150