Question

Calcule o valor numérico de 2x + y/3 yx para:

a) x=-2 e y = 1
b) x= 0 e y = 1
c) x= 1/4 e y = -18
d) x= -1/2 e y = 6

Answer 1

2x+y/3
a)2*(-2)+1/3
-4+1/3
MMC: =-11/3
b)2*0+1/3
0+1/3
=1/3
c) 2*(1/4)+(-18)/3
2/4+(-18)/3
1/2-6
MMC: =-11/2
d) 2*(-1)+6/3
-2+2
=0