Question

plz do these sums for meee

Answer 1

Please tell its of which class and are they of ncert

Answer 2

a>n+5=19

=>n=19-5=14

hence n is not equal to 1

b>7n+5=19

=>n=14/7=2

hence n is not equal to -2

c>7n+5=19

=>n=14/5=2.8

d>4p-3=13

=>p=16/4=4

hence n is not equal to 1

e>4p-3=13

=>p=16/4=4

hence n is not equal to -4

f>4p-3=13

=>p=16/4=4

hence n is  equal to 4