Question

reduza os termos semelhates
a) 5xy-3xy-(7xy)+xy
b) 7a-b(-a+10b+9a)+x
c) 7m-(7/2-m+4m

Answer 1

a) 5xy-3xy-(7xy)+xy
5xy - 3xy -7xy + xy
2xy - 6xy
-4xy

b) 7a-b(-a+10b+9a)+x
7a +ba -10b^2 -9ba +x
-10b^2 -8ba + 7a +x

c) 7m-(7/2-m+4m)
7m -7/2 + m -4m
4m -7/2