Question

Reduza os termos semelhantes:
A) 2x+ (2x+y) - (3x-y) + 9x
B) 5x - {5x- [5x - (5x - m) - m] -m} -m
C) - {7x-m-[4m -(n - m - 3x) - 4x] + n}
D) 5xy-{- (2xy+5x)+[3y- (-xy+x+3xy)]}

Me expliquem por favor!!

Answer 1

A) x+11y
B)0
C)6m
D)9xy-4x-3y