Question

please answer in method​

Answer 1

Step-by-step explanation:

here is your answer of your question hope it will help you

Answer 2

Answer:

21/2

Step-by-step explanation:

first convert 2½ in fractional form like this 5/2

now z/7+1=5/2

z/7=5/2-1/1

z/7=5-2/2

z/7=3/2

z=3/2*7

z=21/2