For this case we must simplify the following expression:
We eliminate the parentheses taking into account that:

So:

We add similar terms taking into account that:
Equal signs are added and the same sign is placed.
Different signs are subtracted and the major sign is placed.

Answer:

Rules for adding: if the bases are the same you can add them, and subtracting happens in a fraction
42 less than x is -50 would be written as x - 42 = -50
Answer:
1/8
Step-by-step explanation:
Answer:
a
Step-by-step explanation: