solvefor x,2 x/6+3 y/6 =13

解答

求解

x, 2 \frac{x}{6} + 3 \frac{y}{6} = 13

x = 39 - \frac{3 y}{2}

求解步骤

2 \cdot \frac{x}{6} + 3 \cdot \frac{y}{6} = 13

将

3 \frac{y}{6}

到右边

2 \cdot \frac{x}{6} = 13 - \frac{y}{2}

整理

2 \cdot \frac{x}{6} : \frac{x}{3}

\frac{x}{3} = 13 - \frac{y}{2}

在两边乘以

3

x = 39 - \frac{3 y}{2}

v n + 1 = v n \cdot (n + 1) (n + 3) (n + 2)^{2}

so l v e f or a, (a) x - ∣ x ∣ = 0

t (t) = t^{2} + 5 t + 6

so l v e f or x, 13 x + 14 y - 9 = 0

so l v e f or c, \frac{114982}{3} \cdot c \cdot m^{3} = \frac{4}{3} \cdot \frac{22}{7} \cdot r^{3}