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受欢迎的代数 >

12x+1-8.5x=3.5x+1

解答

12 x + 1 - 8.5 x = 3.5 x + 1

解答

对所有 x 为真

求解步骤

12 x + 1 - 8.5 x = 3.5 x + 1

两边减去

1

12 x + 1 - 8.5 x - 1 = 3.5 x + 1 - 1

化简

12 x - 8.5 x = 3.5 x

同类项相加:

12 x - 8.5 x = 3.5 x

3.5 x = 3.5 x

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

3.5 x \cdot 10 = 3.5 x \cdot 10

整理后得

35 x = 35 x

将

35 x

para o lado esquerdo

0 = 0

两侧相等

对所有 x 为真

作图

流行的例子

x^{2} + 3 x - 10 = 18

x - 21 = 6

化简 15/3-4/9-1/6+11/18-1/36+2

s im pl i f y \frac{15}{3} - \frac{4}{9} - \frac{1}{6} + \frac{11}{18} - \frac{1}{36} + 2

6 x^{2} - 13 x + 5 = 0

130 + 20 x > 350