2x=-56

解

2 x = - 56

x = - 28

解答ステップ

2 x = - 56

以下で両辺を割る

2

x = - 28

3 x - (7 x - 2) = (2 - x) - (2 x + 1)

3 x - 12 = 6 (x - 12)

y = (- 4)^{2} - 6 (- 4) - 72

y + 3 - 2 \frac{y}{3} + \frac{y}{( 2 )} = \frac{4}{( 3 )} - 3 \frac{y}{2}

\frac{5 - ( - 1 )}{2} - 2 = \frac{1 - ( - 1 )}{2} - \frac{2 ( - 1 + 1 )}{3}