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受欢迎的代数 >

(3((3x)/7+8/5 (2x-1/5))+16)=25

解答

(3 (\frac{3 x}{7} + \frac{8}{5} (2 x - \frac{1}{5})) + 16) = 25

解答

x = \frac{581}{635}

+1

十进制

x = 0.91496 \dots

求解步骤

(3 (\frac{3 x}{7} + \frac{8}{5} (2 x - \frac{1}{5})) + 16) = 25

3 (\frac{3 x}{7} + \frac{8}{5} (2 x - \frac{1}{5})) + 16 = 25

将

16

到右边

3 (\frac{3 x}{7} + \frac{8}{5} (2 x - \frac{1}{5})) = 9

两边除以

3

\frac{635 x - 56}{175} = 3

在两边乘以

175

635 x - 56 = 525

将

56

到右边

635 x = 581

两边除以

635

x = \frac{581}{635}

作图

流行的例子

0.65=x(e^{(0.35)/(0.026)}-1)

0.65 = x (e^{\frac{0.35}{0.026}} - 1)

(x+2)/2+x/3 =(4x-1)/6

\frac{x + 2}{2} + \frac{x}{3} = \frac{4 x - 1}{6}

2 x - 5 = - 8

3+(2+8)=(3+2)+n

3 + (2 + 8) = (3 + 2) + n

solvefor x,6x+4y-2z-5=0

so l v e f or x, 6 x + 4 y - 2 z - 5 = 0