Question

which value of p is the solution of 5p - 1 = 2p + 20

Answer 1

5p-2p-1=20
3p-1=20
3p-1+1=20+1
3p=21
3p/3=21/3
p=7

Have a good one!

Answer 2

Subtract 2p from both sides
5p-1-2p=2p+20-2p
3p-1=20
add 1 to both sides
3p-1+1=20+1
3p=21
divide both sides be 3
3p/3=21/3
p=7
Hope this helps!