гдз математика 6 клас мерзляк

Вправа 1134

1) –9(6х + 1) = –45(2х + 2,6)
6х + 1 = 5(2х + 2,6)
6х + 1 = 10х + 13
6х – 10х = 13 – 1
–4х = 12
х = –3;
2) 0,6(2х + 1) = –1,8(3x – 4)
2х + 1 = –3(3х – 4)
2x + 1 = –9х + 12
2x + 9x = 12 – 1
11x = 11
х = 1.