гдз математика 6 клас мерзляк
Вправа 1140
1) 5a • 4 = 14 – 4
20a = 10
a = 0,5;
2) (2a + 1) • (–1) = –6a + 2 • (–1) – 13
–2a – 1 = –6a – 2 – 13
4a = –14
a = –3,5.
Вправа 1140
1) 5a • 4 = 14 – 4
20a = 10
a = 0,5;
2) (2a + 1) • (–1) = –6a + 2 • (–1) – 13
–2a – 1 = –6a – 2 – 13
4a = –14
a = –3,5.