3.3= x/(47000)*(0.812-0.29)

解答

3.3 = \frac{x}{47000} \cdot (0.812 - 0.29)

x = 297126.43678 \dots

求解步骤

3.3 = \frac{x}{47000} (0.812 - 0.29)

交换两边

\frac{x}{47000} (0.812 - 0.29) = 3.3

数字相减:

0.812 - 0.29 = 0.522

0.522 \cdot \frac{x}{47000} = 3.3

分式相乘:

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

\frac{0.522 x}{47000} = 3.3

在两边乘以

47000

0.522 x = 155100

两边除以

0.522

x = 297126.43678 \dots

so l v e f or x, y - 2 x = 8

so l v e f or x, 2 = x + y

4 (x - 16) = 12

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

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