Ответ:
7x=-30+2x
7x - 2x = -30
5x = -30
x = 6
-17x+20=7x-28
-17x - 7x = -28 - 20
-24x = - 48
x = 2
Cумма корней = 6 + 2 = 8
9*(x-1)=x+15
9х - 9 = х + 15
9х - х = 15 + 9
8х = 24
х = 3
(11x+14)-(5x*8)=25
11х + 14 - 40х = 25
-29х = 25 - 14
-29х = 11
х =
Разность корней =
%
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Ответ:
7x=-30+2x
7x - 2x = -30
5x = -30
x = 6
-17x+20=7x-28
-17x - 7x = -28 - 20
-24x = - 48
x = 2
Cумма корней = 6 + 2 = 8
9*(x-1)=x+15
9х - 9 = х + 15
9х - х = 15 + 9
8х = 24
х = 3
(11x+14)-(5x*8)=25
11х + 14 - 40х = 25
-29х = 25 - 14
-29х = 11
х =
Разность корней =
%