№1. Упростите выражение:
1) 6b +7c — 10b + Зc;
2) — 4q - (11а - 4q):
3) 2(6а — 4) + 5а.
No2. Решите уравнение:
1) — бх = — 24;
2) бх – 2 = 2х – 18;
3) –7y - (21 +y) = 27​
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