Question

Решите-7х=13-2(8х-7)​

Answer 1

-7x=13-2(8x-7)

-7x=13-16x+14

-7x+16x=13+14

9x=27

x=3

Answer 2

$- 7x = 13 - 2 \times (8x - 7) \\ \\ - 7x - 13 + 16x + 14 = 0 \\ \\ - 7 + 16x = 14 + 13 \\ \\ \\ \\ 9x = 27 \\ \\ x = 27 \div 9 \\ \\ x = 3$

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