Answer:

Step-by-step explanation:
Collect like terms and calculate the sum
Answer:
not sure but i think it is
+ × + = +
- × - = +
- × + = +
+ ×- = -
Answer:

Step-by-step explanation:
Answer:
10+ x
Step-by-step explanation:
Follow me please for answering the question
Try this option:
- true;
- not true;
- true;
- true;
- not true.