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受欢迎的代数 >

-1.7v+2.8=1.4v-3.1v+2.8

解答

- 1.7 v + 2.8 = 1.4 v - 3.1 v + 2.8

解答

对所有 v 为真

求解步骤

- 1.7 v + 2.8 = 1.4 v - 3.1 v + 2.8

两边减去

2.8

- 1.7 v + 2.8 - 2.8 = 1.4 v - 3.1 v + 2.8 - 2.8

化简

- 1.7 v = 1.4 v - 3.1 v

同类项相加:

1.4 v - 3.1 v = - 1.7 v

- 1.7 v = - 1.7 v

To eliminate decimal points, multiply by 10 for every digit after the decimal pointThere is one digit to the right of the decimal point, therefore multiply by

10

- 1.7 v \cdot 10 = - 1.7 v \cdot 10

整理后得

- 17 v = - 17 v

将

17 v

para o lado esquerdo

0 = 0

两侧相等

对所有 v 为真

作图

流行的例子

(2x+3)/6-(3x-2)/4 =x-(5x)/(12)

\frac{2 x + 3}{6} - \frac{3 x - 2}{4} = x - \frac{5 x}{12}

2 - 13 x = 6 x + 1 + x - 9

10-(3X+5)/6 =3 11/12-(X/2)/(4/1)

10 - \frac{3 X + 5}{6} = 3 \frac{11}{12} - \frac{\frac{X}{2}}{\frac{4}{1}}

(3x+1)/4-(2x-3)/2 = 1/8 (x-2)+(x+2)/3

\frac{3 x + 1}{4} - \frac{2 x - 3}{2} = \frac{1}{8} (x - 2) + \frac{x + 2}{3}

3 + 5 - x = x