$$5d+2$$ - 

$$d \text{ }$$ multiplied by $$5$$ then add $$2$$

$${d\over5}+2$$ - 

$$d\text{ }$$ divided by $$5$$ then add $$2$$

$${{d+5}\over2}$$ - 

$$d\text{ }$$ add $$5$$ then divided by $$2$$

$$2d+5$$ - 

$$d\text{ }$$ multiplied by $$2$$ then add $$5$$

$$5(d+2)$$ - 

$$d\text{ }$$ add $$2$$ then multiplied by $$5$$

$${1\over5}(d+2)$$ - 

$$d\text{ }$$ add $$2$$ then divided by $$5$$

$${{d+6}\over8}=e$$ - 

$$d=8e-6$$

$$8d+6=e$$ - 

$${{e-6}\over8}=d$$

$${{d-6}\over8}=e$$ - 

$$d=8e+6$$

$$8(d+6)=e$$ - 

$${e\over8}-6=d$$

$${d\over8}-6=e$$ - 

$$d=8(e+6)$$

$$2x=\sqrt{y}$$ - 

$$x={\sqrt{y}\over2}$$

$$2\sqrt{x}=y$$ - 

$$x=({y\over2})^2$$

$$\sqrt{2x}=y$$ - 

$$x={y^2\over2}$$

$$2x^2=y$$ - 

$$x=\sqrt{y\over2}$$

$$(2x)^2=y$$ - 

$$x={{\sqrt{y}}\over2}$$