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受欢迎的代数 >

7/8 d+7-3/4 d= 1/4 (3d-2)

解答

\frac{7}{8} d + 7 - \frac{3}{4} d = \frac{1}{4} (3 d - 2)

解答

d = 12

求解步骤

\frac{7}{8} d + 7 - \frac{3}{4} d = \frac{1}{4} (3 d - 2)

展开

\frac{7}{8} d + 7 - \frac{3}{4} d : \frac{1}{8} d + 7

展开

\frac{1}{4} (3 d - 2) : \frac{3}{4} d - \frac{1}{2}

\frac{1}{8} d + 7 = \frac{3}{4} d - \frac{1}{2}

将

7

到右边

\frac{1}{8} d = - \frac{15}{2} + \frac{3}{4} d

将

\frac{3}{4} d

para o lado esquerdo

- \frac{5}{8} d = - \frac{15}{2}

在两边乘以

8

- 5 d = - 60

两边除以

- 5

d = 12

作图

流行的例子

(x-1)/2-(x-3)=(x+3)/3+1/6

\frac{x - 1}{2} - (x - 3) = \frac{x + 3}{3} + \frac{1}{6}

9 f + 5 = 77

solvefor d,h= d/3+2

so l v e f or d, h = \frac{d}{3} + 2

11-(4x)/3 = x/2

11 - \frac{4 x}{3} = \frac{x}{2}

solvefor x,(12x+15y)/(40)=3(x-y)

so l v e f or x, \frac{12 x + 15 y}{40} = 3 (x - y)