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受欢迎的代数 >

-40=-5c-25-5c-25

解答

- 40 = - 5 c - 25 - 5 c - 25

解答

c = - 1

求解步骤

- 40 = - 5 c - 25 - 5 c - 25

交换两边

- 5 c - 25 - 5 c - 25 = - 40

对同类项分组

- 5 c - 5 c - 25 - 25 = - 40

同类项相加:

- 5 c - 5 c = - 10 c

- 10 c - 25 - 25 = - 40

数字相减:

- 25 - 25 = - 50

- 10 c - 50 = - 40

将

50

到右边

- 10 c = 10

两边除以

- 10

c = - 1

作图

流行的例子

solvefor x,5x+4y=2

so l v e f or x, 5 x + 4 y = 2

solvefor x,5x+4y=4

so l v e f or x, 5 x + 4 y = 4

solvefor C,y=C_{1}x+C_{2}e^x

so l v e f or C, y = C_{1} x + C_{2} e^{x}

solvefor B,D-f^3= 4/3 B

so l v e f or B, D - f^{3} = \frac{4}{3} B

f=3(2/9)^3-8(2/9)^2+5(2/9)-30

f = 3 (\frac{2}{9})^{3} - 8 (\frac{2}{9})^{2} + 5 (\frac{2}{9}) - 30