А) 96(x-1) - (7x-64) = 38(2-x) + 3(17-2x) + 896x - 96 - 7x + 64 = 76 - 38x + 51 - 6x + 889x - 32 = 127 - 4489x + 44x = 127 + 3133x = 15x = 159/13x = 1.196
б) -(10x - 18) + 19(4 - 3x) = 9 - 21(x + 7) + 4(18 - 3x-10x + 18 + 76 - 57x = 9 - 21x - 147 + 72 - 12-67x + 94 = -21x - 6-67x + 21x = -66 - 9-46x = -16x = -160/-4x ≈ 3.478
в) 18(18 - x) - 20(2x + 20) - 8 = 19(19 - 3x) - 25(x - 25324 - 18x - 40x - 400 - 8 = 361 - 57x - 25x + 62-58 - 58x = 986 - 8224x = 104x = 1044/2x = 43.5
А) 96(x-1) - (7x-64) = 38(2-x) + 3(17-2x) + 8
96x - 96 - 7x + 64 = 76 - 38x + 51 - 6x + 8
89x - 32 = 127 - 44
89x + 44x = 127 + 3
133x = 15
x = 159/13
x = 1.196
б) -(10x - 18) + 19(4 - 3x) = 9 - 21(x + 7) + 4(18 - 3x
-10x + 18 + 76 - 57x = 9 - 21x - 147 + 72 - 12
-67x + 94 = -21x - 6
-67x + 21x = -66 - 9
-46x = -16
x = -160/-4
x ≈ 3.478
в) 18(18 - x) - 20(2x + 20) - 8 = 19(19 - 3x) - 25(x - 25
324 - 18x - 40x - 400 - 8 = 361 - 57x - 25x + 62
-58 - 58x = 986 - 82
24x = 104
x = 1044/2
x = 43.5