Question

Sendo r//s, determine a e b
x/2+8 e x/5+20

Answer 1

x/2 + 8 = x/5 + 20
x/2 - x/5 = 20 - 8
(5x-2x)/10 = 12
3x/10 = 12
3x = 120
x = 120/3
x = 40