Can someone pls solve these for me i’ll give brainlist

Answer

3. 14

4. 4

5. 8

Step-by-step explanation:

3) a=14      4( x=4        5) a=8

Step-by-step explanation:

3)QUESTION: 4+a=18

first you -4 from both sides to get rid of the 4 to put a on its own so now it is

a=14

ANSWER: a=14

4)QUESTION: 7x=28

you divide 7 by both sides to make 7 x to x

x=4

ANSWER: x=4

5) QUESTION:a+5=13

you minus 5 from both sides to put a on its own.

a=8

ANSWER= a=8

8121 because

130,000 divided by 16 is 8121