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受欢迎的代数 >

(2(x+3))/5+(3(x-6))/2 = 2/5+(10(2x+1))/6

解答

\frac{2 ( x + 3 )}{5} + \frac{3 ( x - 6 )}{2} = \frac{2}{5} + \frac{10 ( 2 x + 1 )}{6}

解答

x = - \frac{296}{43}

+1

十进制

x = - 6.88372 \dots

求解步骤

\frac{2 ( x + 3 )}{5} + \frac{3 ( x - 6 )}{2} = \frac{2}{5} + \frac{10 ( 2 x + 1 )}{6}

消掉

\frac{10 ( 2 x + 1 )}{6} : \frac{5 ( 2 x + 1 )}{3}

\frac{2 ( x + 3 )}{5} + \frac{3 ( x - 6 )}{2} = \frac{2}{5} + \frac{5 ( 2 x + 1 )}{3}

乘以最小公倍数

12 (x + 3) + 45 (x - 6) = 12 + 50 (2 x + 1)

展开

12 (x + 3) + 45 (x - 6) : 57 x - 234

展开

12 + 50 (2 x + 1) : 100 x + 62

57 x - 234 = 100 x + 62

将

234

到右边

57 x = 100 x + 296

将

100 x

para o lado esquerdo

- 43 x = 296

两边除以

- 43

x = - \frac{296}{43}

作图

流行的例子

2 x - 4 = 2

(8 w - 4)^{2} = 0

x+12<=-1/3 \lor x+12>= 1/3

x + 12 \leq - \frac{1}{3} or x + 12 \geq \frac{1}{3}

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

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

6(x-1/3)=-2(x+23)

6 (x - \frac{1}{3}) = - 2 (x + 23)