k+1/4 = 1/4+1/3 k

解答

k + \frac{1}{4} = \frac{1}{4} + \frac{1}{3} k

k = 0

求解步骤

k + \frac{1}{4} = \frac{1}{4} + \frac{1}{3} k

两边减去

\frac{1}{4}

k + \frac{1}{4} - \frac{1}{4} = \frac{1}{4} + \frac{1}{3} k - \frac{1}{4}

化简

k = \frac{1}{3} k

在两边乘以

3

3 k = k

将

k

para o lado esquerdo

2 k = 0

两边除以

2

k = 0

so l v e f or a, f = \frac{( x - 2 ) ( x - a )}{x ^{2} - 9} + b

4 x - (3 x + 9) = (x + 2) - (2 x - 1)

\frac{1}{6} (12 x - 7) + \frac{b}{6} = 4 - 2 (1 - x)

so l v e f or y, 3 x + 12 y = - 96

x + 20 = 50