8*х - 3*х+98=283
5х = 283-98
5х = 185
х =185:5
х= 37
A 1 : 1. А = 7.5; В = 4; С = 5; D = 2; E = 9.5; F = 6.
2. 4.
А 2 : 1. A = 12; B = 14; C = 24; D = 26; E = 20; F = 18.
2. 22.
А 3 : 1. A = 4.4; B = 7.6; C = 6; D = 6.8; E = 8.2; F = 9.4.
2. 8.1.
А 4 : 1. A = 1.6; B = 2.1; C = 0.3; D = 0.8; E = 2.9; F = 2.4.
2. 1.6.
Б 1 : 1. A = 80; B = 45; C = 120; D = 55; E = 70; F = 95.
2. 75.
Б 2 : 1. A = 1 1/3; B = 6 1/3; C = 2/3; D = 2; E = 3 1/3; F = 4 2/3.
2. 3 1/3.
Б 3 : 1. A = 84; B = 62; C = 54; D = 58; E = 70; F = 76.
2. 67.
Б 4 : 1. A = 7; B = 5.8; C = 6.5; D = 6.2; E = 5.4; F = 7.6.
2. 6.9.
1
1/3 это дробь типо 3
5х=185
х=37
че сложного то?))