解答 - 绝对值方程

$$\left(4s+6\right)-s=\left(s-2\right)-s$$

收集同类项:

$$\left(4s-s\right)+6=\left(s-2\right)-s$$

简化运算:

$$3s+6=\left(s-2\right)-s$$

收集同类项:

$$3s+6=\left(s-s\right)-2$$

简化运算:

$$3s+6=-2$$

从两边减去 $$$$:

$$\left(3s+6\right)-6=-2-6$$

简化运算:

$$3s=-2-6$$

简化运算:

$$3s=-8$$

两边都除以 :

$$\frac{\left(3s\right)}{3}=\frac{-8}{3}$$

简化分数:

$$s=\frac{-8}{3}$$

$$\left(4s+6\right)=-s+2$$

将 $$$$ 加到等式的两边:

$$\left(4s+6\right)+s=\left(-s+2\right)+s$$

收集同类项:

$$\left(4s+s\right)+6=\left(-s+2\right)+s$$

简化运算:

$$5s+6=\left(-s+2\right)+s$$

收集同类项:

$$5s+6=\left(-s+s\right)+2$$

简化运算:

$$5s+6=2$$

从两边减去 $$$$:

$$\left(5s+6\right)-6=2-6$$

简化运算:

$$5s=2-6$$

简化运算:

$$5s=-4$$

两边都除以 :

$$\frac{\left(5s\right)}{5}=\frac{-4}{5}$$

简化分数:

$$s=\frac{-4}{5}$$