Answer:

Math Book = 120

English Book = 100

Step-by-step explanation:

Math = x+20

English = x

x+x+20=220

2x + 20 = 220

2x + 20 -20 = 220 -20

2x = 200

x / 2 = 200 / 2

x = 100

Math = x + 20

        = (100) + 20

English = x

            = 100