Помогите пожалуйста !
a) 9 +13x = 35+26x
б) 7/9х + 3 = 2/3х +5
в) 0,81х - 71 = 1,11х + 1
г) 11х + 7ч - 24х =42
a) 9 +13x = 35+26x
б) 7/9х + 3 = 2/3х +5
в) 0,81х - 71 = 1,11х + 1
г) 11х + 7ч - 24х =42
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Answers & Comments
13х - 26х = 35 - 9
-13х = 26
х =
х = -2
б) 7/9х + 3 = 2/3х + 5
в) 0,81х - 71 = 1,11х + 1
0,81х - 1,11х = 1 + 71
-0,3x = 72
x =
x = -240
г) 11х + 7х - 24х = 42
-6х = 42
х =
х = -7