Question

sabendo que X= 2a e y = 5a , calcule
a) X + Y
b) y- 2x
c) X.Y
d) 2Y: y

Answer 1

a) 2a+5a = 7a
b) 5a-2.2a = 5a-4a = a
c) 2a.5a = 10a
d) 2.5a/5a = 10a/5a = 2a

Answer 2

A ) 2A + 5A = 7A
B) 5A - 2(2A) = 5A - 4A = A
C ) 2A . 5A = 10A
D ) 2.5A / 5A = 10A / 5A = 2A