Question

reduza os termos semelhantes nas seguintes expressões algebricas
a)6x+(2x-4)-2=
b)7y-8-(5y-3)=
c)4x-(-3x+9-2x)=
d)3x-(-2x+6(-8x+9=
e)4x-3+(2x+1)=
f)x+y-(x+2y​

Answer 1

$\Large\boxed{\begin{array}{l}\tt a)~\sf 6x+(2x-4)-2=6x+2x-4-2\\\sf=8x-6\\\tt b)~\sf 7y-8-(5y-3)=7y-8-5y+3\\\sf=2y-5\\\tt c)~\sf 4x-(-3x+9-2x)=4x+3x-9+2x\\\sf=9x-9\\\tt d)~\sf3x-(-2x+6-8x+9)=3x+2x-6+8x-9\\\sf=13x-15\\\tt e)~\sf 4x-3+(2x+1)=4x-3+2x+1\\\sf=6x-2\\\tt f)~\sf x+y-(x+2y)=\backslash\!\!\!x+y-\backslash\!\!\!x-2y\\\sf=-y\end{array}}$