The expression n+n-0.18n is equivalent to?

1.82n

Step-by-step explanation:

n+n-0.18n

Combine like terms

2n -.18n

1.82n

1.82n

Step-by-step explanation:

We combine like terms to simplify this.

Any variable with no other coefficient can be written with a coefficient of 1. This is because everything can be multiplied by 1 without changing it. This means we have

1n + 1n - 0.18n

Combining like terms, we have

2n - 0.18n = 1.82n