(18х - 19) - (4 - 7х) = -73
18х - 19 - 4 + 7х = -73
25х = -73 + 19 + 4
25х = -50
х = -2
18х-19-4+7х=-73
25х=-50
х=-50÷25
Х=-2
(18х - 19) - (4 - 7х) = -73
18х - 19 - 4 + 7х = -73
25х = -73 + 19 + 4
25х = -50
х = -2
18х-19-4+7х=-73
25х=-50
х=-50÷25
Х=-2