Question

поммооогите пожалуйста​

Answer 1

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$x + 10 - \frac{x}{3} = 10 \\ x + 10 - \frac{1}{3} x= 10 \\ x - \frac{1}{3} x = 10 - 10 \\ \frac{2}{3} x = 0 \\ x = 0 \div \frac{2}{3} \\ x = 0$

Answer 2

$x + 10 - \frac{x}{3} = 10 \\ x - \frac{x}{3 } = 10 \\ 3x - x = 0 \\ 2x = 0 \\ x = 0$