Question

1) 19х - 12х = 3,1922) 4, 18 -1,2х = 3,223) 1, 98 : (0,7- х) = 4,5

Answer 1

1. 7х=3,192 Х=0,456 2. 1,2х =3,22-4,18 Х=-0,8 3.

Answer 2

1) 19x - 12x = 3.19 7x = 3.19 x = 3.19 / 7 x = 0.4557

2) 4 + 18 - 1.2x = 3.22 22 - 1.2x = 3.22 -1.2x = 3.22 - 22 -1.2x = -18.78 x = -18.78 / -1.2 x = 15.65

3) 1 + 98 / (0.7 - x) = 4.5 98 / (0.7 - x) = 4.5 - 1 98 / (0.7 - x) = 3.5 98 = 3.5 * (0.7 - x) 98 = 2.45 - 3.5x 3.5x = 2.45 - 98 3.5x = -95.55 x = -95.55 / 3.5 x = -27.3

Итак, решения уравнений: 1) x = 0.4557 2) x = 15.65 3) x = -27.3