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x

Question :

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

解方程

x = 3

求值

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

将表达式移到左侧

2 (4 x - 3) - 8 - (4 + 2 x) = 0

把各项相减

More Steps

求值

2 (4 x - 3) - 8 - (4 + 2 x)

如果括号外出现负号或减号，请删除括号并更改括号内每个术语的符号

2 (4 x - 3) - 8 - 4 - 2 x

减去数字

2 (4 x - 3) - 12 - 2 x

2 (4 x - 3) - 12 - 2 x = 0

计算

More Steps

求值

2 (4 x - 3) - 12 - 2 x

展开表达式

More Steps

计算

2 (4 x - 3)

应用分配属性

2 \times 4 x - 2 \times 3

乘以数字

8 x - 2 \times 3

乘以数字

8 x - 6

8 x - 6 - 12 - 2 x

把各项相减

More Steps

求值

8 x - 2 x

通过计算同类项系数的和或差来合并同类项

(8 - 2) x

减去数字

6 x

6 x - 6 - 12

减去数字

6 x - 18

6 x - 18 = 0

将常数移至右侧并更改其符号

6 x = 0 + 18

删除 0 不会更改值，因此将其从表达式中删除

6 x = 18

两边同时除以

\frac{6 x}{6} = \frac{18}{6}

把这些数相除

x = \frac{18}{6}

Solution

More Steps

求值

\frac{18}{6}

化简数字

\frac{3}{1}

计算

3

x = 3

Show Solution

改写方程

x = 3

求值

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

求值

More Steps

求值

2 (4 x - 3) - 8

展开表达式

More Steps

计算

2 (4 x - 3)

应用分配属性

2 \times 4 x - 2 \times 3

乘以数字

8 x - 2 \times 3

乘以数字

8 x - 6

8 x - 6 - 8

减去数字

8 x - 14

8 x - 14 = 4 + 2 x

将变量移到左侧

6 x - 14 = 4

将常量移到右侧

6 x = 18

Solution

x = 3

Show Solution

Graph

Graph

Frequently Asked Questions

$求解 x$ \(2(4x-3)-8=4+2x\)

$x = 3$
以标准形式重写 \(2(4x-3)-8=4+2x\)

$x = 3$

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