Question

3- Efetue:

a) (+7x) + (-3x) = 
b) (-8x) + (+11x) = 
c) (-2y) + (-3y) = 
d) (-2m) + (-m) = 
e) (+5a²) + (-3a²) = 
f) (+5x) + (-5x) =  
​

Answer 1

Resposta:

a)+7x -3x=+4x

b)-8x +11x=+3x

c) -2y -3y= -5y^2

d)-2m -m= -2m

e)+5a^2 -3a^2=+2a^2

f) +5x -5x= 0x