Question

Simplifique as expressoes reduzindo os termos semelhantes. a+1+a-7. -9+5m+7x-2m. xy2 +xy2+x2y. 3x+5x+0,2x-x+2x

Answer 1

a)a+1+a-7=
a+a+1-7=
2a-6

b) -9x+5m+7x-2m=
-9x+7x+5m-2m=
-2x+3m

c)xy²+xy²+x²y=
2xy²+x²y

d)3x+5x+0,2x-x+2x=
8x+0,2x-x+2x=
8,2x-x+2x=
7,2x+2x=
9,2x