Решите уравнение:
1) -4х = 28;
3)-1,4х =-5,6;
5) х = 1;
2
2) 0,7x = -4,2;
4)
6) 3x = 7:
7) х=-12;
9) 18х + 9.
Решите уравнение:
1) 2x = 18-х;
2) 7х + 3 = 30 - 2x;
4) 0,2х + 2,7 = 1,4-1,1х;
5) 5,4 - 1,5х = 0,3х - 3,6;
3) 7 - 2x = 3х - 18;
в) x +15 = 4х +10.​
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