Question

Equivalent EquationsBelow are two equivalent equations. Explain what was done to both sidesof Equation 1 to create Equation 2. *Equation 1Equation 20.4x – 0.15 = 0.2540x - 15 = 25

Answer 1

To get equation 2 from equation 1, we have to multiply both sides of the equation by 100.

Let's see:

$\begin{gathered} 0.4x-0.15=0.25\text{ (equation 1)} \\ \rightarrow(0.4x-0.15)\cdot100=0.25\cdot100 \\ \rightarrow40x-15=25\text{ (equation 2)} \end{gathered}$