1. Решите уравнение. 120 – 5x = 5x + 65.

2. Решите уравнение. 50x + 1000 = 10020 + 49x.

3. Решите уравнение. 2x + 54 – 28 = 42.

4. Решите уравнение. 12x · 12 = 1728.

5. Решите уравнение. 6x + 9 = 21.
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