Пошаговое объяснение:
1. 1)13х-26 = -130
13х = -130+26
13х = -104
х = -104 ÷ 13
х = -8
2)5х-3 = 3х-11
5х-3х = -11+3
2х = -8
х = -8 ÷ 2
х = -4
3)24 (х+2) = 6 (х-4)
24х+48 = 6х - 24
24х-6х = -24-48
18х = -72
х = -72÷18
\ - дроб
4) (2\3)х+1 = (1\2)х+(1\6)
(2\3)х - (1\2)х = (1\6) - 1
(4-3\6)х = -(5\6)
х = -(5\6)÷(1\6)
х = -(5\6)×(6\1)
х = -5
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Пошаговое объяснение:
1. 1)13х-26 = -130
13х = -130+26
13х = -104
х = -104 ÷ 13
х = -8
2)5х-3 = 3х-11
5х-3х = -11+3
2х = -8
х = -8 ÷ 2
х = -4
3)24 (х+2) = 6 (х-4)
24х+48 = 6х - 24
24х-6х = -24-48
18х = -72
х = -72÷18
х = -4
\ - дроб
4) (2\3)х+1 = (1\2)х+(1\6)
(2\3)х - (1\2)х = (1\6) - 1
(4-3\6)х = -(5\6)
х = -(5\6)÷(1\6)
х = -(5\6)×(6\1)
х = -5