2/3 x= pi/2

解答

\frac{2}{3} x = \frac{π}{2}

x = \frac{3 π}{4}

十进制

x = 2.35619 \dots

求解步骤

\frac{2}{3} x = \frac{π}{2}

在两边乘以

3

2 x = \frac{3 π}{2}

两边除以

2

x = \frac{3 π}{4}

so l v e f or x, (x - 2) 2 + (y + 12) 2 = 34

5 (- 5) + 3 (7) = - 4

\frac{x + 2 x}{7} + \frac{3 x - 2}{5} = \frac{7 x + 12}{3}

0.99 \cdot (0.3 \cdot 5.625 + 0.6 \cdot (4 + x) + 8.5 \cdot 0.1) = 4.95

- 2 (13 + 6 c) = 58