1) 1.75×x+50-0.3=84.7
1,75x = 84,7 + 0,3 – 50
1.75x = 35
x = 20
2) 0.4×x+2.75+6.2×x=55.55
0,4x + 6,2x = 55,55 – 2,75
6.6x = 52.8
x = 8
3) x-0.2×x+82.1=882.1
0,8х=800
х= 800/0,8
х=1000
1) 1.75×x+50-0.3=84.7
1,75x = 84,7 + 0,3 – 50
1.75x = 35
x = 20
2) 0.4×x+2.75+6.2×x=55.55
0,4x + 6,2x = 55,55 – 2,75
6.6x = 52.8
x = 8
3) x-0.2×x+82.1=882.1
0,8х=800
х= 800/0,8
х=1000