Question

Help me friends ? Q no 17​

Answer 1

Answer:

Step-by-step explanation:

correct answer is d

for option (b) if you add 2 only at L.H.S. solution of equation changes

for eg,

∴2x = 0

∴2x+2 =0

have different solution

but solution in case of option (a) and (c) will be unaffected as it is applied both the side