解答 - 绝对值方程

$$\left(p+3\right)-2p=\left(2p-2\right)-2p$$

收集同类项:

$$\left(p-2p\right)+3=\left(2p-2\right)-2p$$

简化运算:

$$-p+3=\left(2p-2\right)-2p$$

收集同类项:

$$-p+3=\left(2p-2p\right)-2$$

简化运算:

$$-p+3=-2$$

从两边减去 $$$$:

$$\left(-p+3\right)-3=-2-3$$

简化运算:

$$-p=-2-3$$

简化运算:

$$-p=-5$$

将 $$$$ 乘以两边:

$$-p·-1=-5·-1$$

删除乘以负一项:

$$p=-5·-1$$

简化运算:

$$p=5$$

$$\left(p+3\right)=-2p+2$$

将 $$$$ 加到等式的两边:

$$\left(p+3\right)+2p=\left(-2p+2\right)+2p$$

收集同类项:

$$\left(p+2p\right)+3=\left(-2p+2\right)+2p$$

简化运算:

$$3p+3=\left(-2p+2\right)+2p$$

收集同类项:

$$3p+3=\left(-2p+2p\right)+2$$

简化运算:

$$3p+3=2$$

从两边减去 $$$$:

$$\left(3p+3\right)-3=2-3$$

简化运算:

$$3p=2-3$$

简化运算:

$$3p=-1$$

两边都除以 :

$$\frac{\left(3p\right)}{3}=\frac{-1}{3}$$

简化分数:

$$p=\frac{-1}{3}$$