Question

What is 9-4(2p-1)=45?

Answer 1

9-4(2p-1)=45
5(10p-5)=45
10p-5=45
10(5)-5=45
50-5=45
45=45

Answer 2

9 - 4(2p - 1) =45
5(2p - 1) = 45
10p - 5 = 45
10p = 45 + 5
10p = 50
p = 50/10
p =5      (ans)