Answer:
-7
Step-by-step explanation:
Coefficients are the numbers that multiply the following variables, so in the case of -7yz^2, the coefficient would have to be -7.
Answer:22
x-10=12
x= 10+12
x=22
Answer:

Step-by-step explanation:
1) Remove parentheses.

2) Regroup terms.

Answer:
80
Step-by-step explanation: