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受欢迎的代数 >

((ax+b))/(cx+d)=3

解答

\frac{( a x + b )}{c x + d} = 3

解答

x = \frac{3 d - b}{a - 3 c}; a \neq = 3 c

求解步骤

\frac{( a x + b )}{c x + d} = 3

化简

\frac{( a x + b )}{c x + d} : \frac{a x + b}{c x + d}

\frac{a x + b}{c x + d} = 3

在两边乘以

c x + d

a x + b = 3 (c x + d)

展开

3 (c x + d) : 3 c x + 3 d

a x + b = 3 c x + 3 d

将

b

到右边

a x = 3 c x + 3 d - b

将

3 c x

para o lado esquerdo

a x - 3 c x = 3 d - b

分解

a x - 3 c x : x (a - 3 c)

x (a - 3 c) = 3 d - b

两边除以

a - 3 c; a \neq = 3 c

x = \frac{3 d - b}{a - 3 c}; a \neq = 3 c

作图

流行的例子

-16a=(-(2d))/((3r))

- 16 a = \frac{- ( 2 d )}{( 3 r )}

(x-5)/8 = 4/(x-1)

\frac{x - 5}{8} = \frac{4}{x - 1}

(1000x-50000)/(1000x)=0.25

\frac{1000 x - 50000}{1000 x} = 0.25

(x-6)/(2x+1)=10

\frac{x - 6}{2 x + 1} = 10

solvefor x, c/x =rd

so l v e f or x, \frac{c}{x} = r d