Question

Calcule o valor numerico das expressoes abaixo

a)x - y (x=5, y= - 4)
b)3x + a (x =2, a = 6)
c)2x + m (x= -1,m= - 3)
d)m - 2a (m= 3, a= -5)
e)x + y (x= 1/2, y = -1/5)
f)a - b (a=3,b= -1/2)

Answer 1

a) 5-(-4)= 5+4=9

b) 3.2+6= 6+6=12

c) 2.(-1)+(-3)= -2-3=-5

d) 3-2.(-5)=3+10=13

e) 1/2+(-1/5)= 1/2-1/5=5-2/10=3/10

f) 3-(-1/2)= 3+1/2=6+1/2=7/2