Question

Write and solve an equation to find the answer.?

Tracy has already cycled 1 kilometer this year, plus she plans to cycle 2 kilometers during each trip to work. After 4 trips to work, how many kilometers will Tracy have cycled in total? Write and solve an equation to find the answer.

Answer 1

See below.

Explanation:

Let `x` be the number of kilometers Tracy has cycled in total.

So, we have the equation `x=...`, where the "..." is to be filled.

Since she already cycled 1 kilometer, we can add one to your equation :

`x=1+...`

After 4 trips to work in which she cycles 2 kilometers,
the number of kilometers she has cycled is 4 `*` 2, which is 8.

`x=1+4 * 2`.

If you wish so, you can remove 1 from the right side to get

`x-1 = 8`.