Question

Hi! I really need help, I will give brainliest to whoever is right!
Simplify the following equations:
#1, (7+2a)⋅3-20
#2, 7⋅(a+5)-30
#3, (3-a)⋅2+a
#4, (7+2a)⋅3-20
#5, (a+3)-(a+2)
#6, (a+20)-(a-20)
#7, (2a+1)-(a+2)
Answer as much as you can!

Answer 1

Answer:

1. 6a+1

2. 7a+5

3. 6-a

4. 6a-1

5. 1

6. 40

7.  a-1

Sorry if they are wrong...

Answer 2

Answer:

1. 1+6a

2. 72.7a+333.5

3. 6-a

4. 1+6a

5. 1

6. 40

7. a-1

Step-by-step explanation: