Question

guys solve this all maths question step by step in detail plz. ( do simple equation) ​

Answer 1

Step-by-step explanation:

1-

5+x = 7

x= 7-5

=2

2-

-6+x= 13

x= -13+6

= -7

3-

x-7= 14

x= 14+7

= 21

4-

a+11= 20

a = 20-11

= 9