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受欢迎的代数 >

7x+15ax-110+185/9 ax=18x-5a+12/57 a

解答

7 x + 15 a x - 110 + \frac{185}{9} a x = 18 x - 5 a + \frac{12}{57} a

解答

x = \frac{- 819 a + 18810}{19 ( 320 a - 99 )}; a \neq = \frac{99}{320}

求解步骤

7 x + 15 a x - 110 + \frac{185}{9} a x = 18 x - 5 a + \frac{12}{57} a

\frac{12}{57} a = \frac{4 a}{19}

7 x + 15 a x - 110 + \frac{185}{9} a x = 18 x - 5 a + \frac{4 a}{19}

将

110

到右边

7 x + 15 a x + \frac{185}{9} a x = 18 x - 5 a + \frac{4 a}{19} + 110

将

18 x

para o lado esquerdo

\frac{320}{9} a x - 11 x = - 5 a + \frac{4 a}{19} + 110

在两边乘以

9

320 a x - 99 x = - 45 a + \frac{36 a}{19} + 990

分解

320 a x - 99 x : x (320 a - 99)

x (320 a - 99) = - 45 a + \frac{36 a}{19} + 990

两边除以

320 a - 99; a \neq = \frac{99}{320}

x = \frac{- 819 a + 18810}{19 ( 320 a - 99 )}; a \neq = \frac{99}{320}

作图

流行的例子

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\frac{a}{10} = \frac{2}{5}