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受欢迎的代数 >

(6x-2)/2 =(7x+9)/3

解答

\frac{6 x - 2}{2} = \frac{7 x + 9}{3}

解答

x = 6

求解步骤

\frac{6 x - 2}{2} = \frac{7 x + 9}{3}

使用分式交叉相乘: 若

\frac{a}{b} = \frac{c}{d}

则

a \cdot d = b \cdot c

(6 x - 2) \cdot 3 = 2 (7 x + 9)

展开

(6 x - 2) \cdot 3 : 18 x - 6

展开

2 (7 x + 9) : 14 x + 18

18 x - 6 = 14 x + 18

将

6

到右边

18 x = 14 x + 24

将

14 x

para o lado esquerdo

4 x = 24

两边除以

4

x = 6

作图

流行的例子

2(y-6)=3(y-4)-y

2 (y - 6) = 3 (y - 4) - y

solvefor x,qx+x=r

so l v e f or x, q x + x = r

- 5 - (7 x + 4) = - 6 x

6 (x + 5) = 3 x

7 x = 6 + 5 (3 x + 3) - x