Question

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Answer 1

1.
-9(6x + 1) = -45(2x + 2.6)
-54x - 9 = - 90x - 117
-54x - 9 + 90x + 117 = 0
36x + 108 = 0
36x = -108
x = -3
Ответ: -3

2.
0.6(2x - 1) = -1.8(3x - 4)
1.2x + 0.6 = -5.4x + 7.2
1.2x + 0.6 + 5.4x - 7.2 = 0
6.6x - 6.6 = 0
6.6x = 6.6
x = 1
Ответ: 1

Answer 2

1)-54x-9=-90x-117
-54x+90x=-117+9
36x=-108
x=-3
2)1.2x+0.6=-5.4x+7.2
1.2x+5.4x=7.2-0.6
6.6x=6.6
x=1

Держи:)