Question

$2x + 7x = 3 \times 4 - 5 \times 6$
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Answer 1

$</p><p>2x + 7x = 3 \times 4 - 5 \times 6 \\ 9x = 12 - 30 \\ 9x = - 18 \\ x = \frac{ - 18}{9} \\ x = - 2$