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受欢迎的代数 >

6=5+0.33(4.5)+0.67(x)

解答

6 = 5 + 0.33 (4.5) + 0.67 (x)

解答

x = - \frac{97}{134}

+1

十进制

x = - 0.72388 \dots

求解步骤

6 = 5 + 0.33 (4.5) + 0.67 (x)

交换两边

5 + 0.33 (4.5) + 0.67 (x) = 6

去除括号:

(a) = a

5 + 0.33 \cdot 4.5 + 0.67 x = 6

数字相乘:

0.33 \cdot 4.5 = 1.485

5 + 1.485 + 0.67 x = 6

数字相加:

5 + 1.485 = 6.485

0.67 x + 6.485 = 6

在两边乘以

1000

670 x + 6485 = 6000

将

6485

到右边

670 x = - 485

两边除以

670

x = - \frac{97}{134}

作图

流行的例子

f = (1)^{2}

\frac{x}{2 + 11} = 19

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

\frac{x + 1}{4} - \frac{x - 2}{3} = \frac{x + 3}{2} - x - 1

solvefor x,3x+3y-6=0

so l v e f or x, 3 x + 3 y - 6 = 0

- 2 b - (- 7) = 11