Question

Gente me ajuda n sei fazer essas

Answer 1

a 5x- 4x=x
b -7-x=-8x

c 8a
d-xy

Answer 2

a) (5x) + (-4x) = 5x - 4x = x
b) (-7x)-(x) = - 7x - X = - 8x
c) 5ax - 11ax +9ax - ax = 5ax +9ax - 11ax - ax = 14ax - 12ax = 2ax
d) xy - 7xy - 2xy + 13xy - 6xy = xy + 13 xy - 7xy - 2xy - 6xy = 14xy - 15xy = - xy
e) 7x²y^5 - 12x²y^5 +5x²y^5 = 0