Question

sendo a = -1, B=0, x = 2 e y= a 10 , calcule a) 2x - 5
b) 3a+2y
d)5+x-(5x-2)
e)10y-10x

Answer 1

a) 2*2 + 5 = 9 b) 3*1 + 2*10 = 23 
d) 5 + 2 - 5*2 +2 = -1
e) 10*10 - 10*2 = -80