Question

решите уравнения:
1) (4,5х + 3,6) * (-19,6) = 0
3) -15 1/13 * (1,9х + 5,7) = 0

Answer 1

(4.5х+3.6)•(-19.6) = 0
-88.2х-70.56=0
88.2х= -70.56
х= -70.56:88.2
х= -0.8

Answer 2

1) (4,5х + 3,6) * (-19,6) = 0

4,5х+3,6=0:(-19,6)

4,5х+3,6=0

4,5х=0-3,6

Х=-3,6:4,5

Х=-0, 8

3) -15 1/13 * (1,9х + 5,7) = 0

1,9х+5,7=0:(-15 1/13)

1,9х+5,7=0

1,9х=0-5,7

Х=-5, 7:1,9

Х=-3