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受欢迎的代数 >

-8x+74-30x-51x=3x-31x-170

解答

- 8 x + 74 - 30 x - 51 x = 3 x - 31 x - 170

解答

x = 4

求解步骤

- 8 x + 74 - 30 x - 51 x = 3 x - 31 x - 170

对同类项分组

- 8 x - 30 x - 51 x + 74 = 3 x - 31 x - 170

同类项相加:

- 8 x - 30 x - 51 x = - 89 x

- 89 x + 74 = 3 x - 31 x - 170

同类项相加:

3 x - 31 x = - 28 x

- 89 x + 74 = - 28 x - 170

将

74

到右边

- 89 x = - 28 x - 244

将

28 x

para o lado esquerdo

- 61 x = - 244

两边除以

- 61

x = 4

作图

流行的例子

solvefor x,2y+4=6x

so l v e f or x, 2 y + 4 = 6 x

solvefor x,3x+4y=-6

so l v e f or x, 3 x + 4 y = - 6

solvefor x,3x+4y=-3

so l v e f or x, 3 x + 4 y = - 3

5(r-1)=2(r-4)-6

5 (r - 1) = 2 (r - 4) - 6

2/5 f+2=-1/2 (8+12/5 f)-6

\frac{2}{5} f + 2 = - \frac{1}{2} (8 + \frac{12}{5} f) - 6