We need to solve eight linear equations for $x$.

AlgebraLinear EquationsSolving Equations
2025/6/23

1. Problem Description

We need to solve eight linear equations for xx.

2. Solution Steps

1. $x + 3(x+1) = 2x$

x+3x+3=2xx + 3x + 3 = 2x
4x+3=2x4x + 3 = 2x
4x2x=34x - 2x = -3
2x=32x = -3
x=32x = -\frac{3}{2}

2. $1 + 3(x-1) = 4$

1+3x3=41 + 3x - 3 = 4
3x2=43x - 2 = 4
3x=63x = 6
x=2x = 2

3. $2x - 2(x+1) = 5x$

2x2x2=5x2x - 2x - 2 = 5x
2=5x-2 = 5x
x=25x = -\frac{2}{5}

4. $2(3x-1) = 3(x-1)$

6x2=3x36x - 2 = 3x - 3
6x3x=3+26x - 3x = -3 + 2
3x=13x = -1
x=13x = -\frac{1}{3}

5. $4(x-1) = 2(3-x)$

4x4=62x4x - 4 = 6 - 2x
4x+2x=6+44x + 2x = 6 + 4
6x=106x = 10
x=106=53x = \frac{10}{6} = \frac{5}{3}

6. $4(x-1) - 2 = 3x$

4x42=3x4x - 4 - 2 = 3x
4x6=3x4x - 6 = 3x
4x3x=64x - 3x = 6
x=6x = 6

7. $4(1-2x) = 3(2-x)$

48x=63x4 - 8x = 6 - 3x
8x+3x=64-8x + 3x = 6 - 4
5x=2-5x = 2
x=25x = -\frac{2}{5}

8. $3 - 2(2x+1) = x + 17$

34x2=x+173 - 4x - 2 = x + 17
14x=x+171 - 4x = x + 17
4xx=171-4x - x = 17 - 1
5x=16-5x = 16
x=165x = -\frac{16}{5}

3. Final Answer

1. $x = -\frac{3}{2}$

2. $x = 2$

3. $x = -\frac{2}{5}$

4. $x = -\frac{1}{3}$

5. $x = \frac{5}{3}$

6. $x = 6$

7. $x = -\frac{2}{5}$

8. $x = -\frac{16}{5}$

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