Question

Calculo Algebrico:
1)Calcule:
A) 6a-3a+2a=
B)-2y²-7y²+5y²

2)Calcule:
7y-(-2y+y)+(-3y+5y)

[Me ajudem galera pfv]

Answer 1

A) 6a-3a+2a = 3a+2a = 5a

B) $-2y^{2} -7y^{2} +5 y^{2} = -9 y^{2} +5 y^{2} = -4 y^{2}$

2)

$7y-(-2y+y)+(-3y+5y) = 7y+2y-y-3y+5y = 14y-4y = 10y$