Answer:
Option a) Adding 7x to both the sides
Step-by-step explanation:
Given is an equation linear in one variable x.
[tex]-7x -5= x + 3[/tex]
To solve this equation we have to bring x terms on one side and constants on the other side.
Subtracting 5 from both sides will not eliminate the constant -5 hence wrong.
Adding x to both sides will make right side as 2x instead of eliminating x.
Combining like terms will give -7x-x not -7x+x hence incorrect
Adding 7x to both sides gets rid of x term on the left.
Hence this option is right answer
