Question

sabendo que x + y = 45

a) y + x
b ) (x + y ) +15
c) 312 + (y + x)
d ) x + 107 + y

Answer 1

A)Y+x=45

B)(x+y)+15 > (45)+15 = 60

C)312+(y+x) > 312+45 =357

D)x+107+y > x+y+107 > 45+107 = 152