### Home > MC2 > Chapter 2 > Lesson 2.3.4 > Problem2-130

2-130.

Simplify the expressions below.

1. $8 - 13 - (-4)$

1. $4 - (-7) + (-2)$

1. $-7 + 3 - 20$

$−1$

If you start at $0$, move to left $7$, right $3$, and left $20$, where do you end up?