Answer:
$3500.
Explanation:
Let x be the amount contributed by Edison to his 401(k) plan.
We have been given that Edison’s employee matches 20% of Edison’s contributions to his 401(k) plan. Edison’s employer contributed $700 to the plan last year.
To find the Edison's contribution we need to find x such that 20% of x equals 700. We can represent this information in an equation as:
![20\%\text{ of }x=700](https://img.qammunity.org/2020/formulas/mathematics/high-school/l75ccxdmlu8813bscxbean1pw3np6kfb1x.png)
![(20)/(100)*x=700](https://img.qammunity.org/2020/formulas/mathematics/high-school/xayjm37ijrjkohcjzbayf32b8llilmay8a.png)
![0.20*x=700](https://img.qammunity.org/2020/formulas/mathematics/high-school/y6lsrseojptwx5htg5m09btrbznif9ceu9.png)
Let us divide both sides of our equation by 0.20.
![(0.20*x)/(0.20)=(700)/(0.20)](https://img.qammunity.org/2020/formulas/mathematics/high-school/vluwb7gccswi0oxs19hvnx5qpihv8lw101.png)
![x=3500](https://img.qammunity.org/2020/formulas/mathematics/high-school/emmxxme13l2kld5k0ar72ujdh2ys7mk0yd.png)
Therefore, Edison contributed $3500 to the plan last year.